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Chemistry of Taste and Smell - The human body does amazing things on a daily basis. All the senses that the body uses consists of nerves, neurotransmitters and the brain decodes the messages that was received. Smell is the passing of odorants through the nose, received by the olfactory cells, and are sent directly to the brain. Taste is the weakest of the five senses but it is the sensory function of the central nervous system( The Science of Taste and Smell). We taste and smell things every day but little do most people know that these two senses work together to make life even more satisfactory....   [tags: Chemistry Essays]
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559 words
(1.6 pages)
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The Chemistry Nobel Prize 2013 - The Chemistry Nobel Prize 2013 Chemistry is one of category of Nobel Prize given to chemists who have dedicated in chemistry science. For a chemist, Nobel Prize is one of most prestigious award. Nobel Prize for chemistry 2013 has been decided, chemistry prize goes to three theoretical chemists who have developed a multiscale computer model to predict complex chemical reaction. The three chemists are Michael Levitt from Stanford University, Martin Karplus, Strasbourg University, Harvard University, and Cambridge University, and Arieh Warshe from University of Southern California....   [tags: Chemistry Nobel Prize]
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754 words
(2.2 pages)
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Chemistry and Synaptic Transmitters - Chemistry and Synaptic Transmitters The most common psychoactive substances can be divided into depressants (i.e., alcohol, sedatives, hypnotics), stimulants (i.e., cocaine, amphetamines, ecstasy), opioids (i.e., morphine and heroine), and hallucinogens (i.e., PCP, LSD, cannabis). The brain has different effects to different psychoactive substances. They bind to different receptor types, and can increase or decrease the activity of neurons through several different mechanisms. Consequently, these psychoactive substances have different behavioral effects, different rates of development of tolerance, different withdrawal symptoms, and different short-term and long-term effec...   [tags: Chemistry Science Scientific Essays]
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1653 words
(4.7 pages)
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For the Love of Chemistry - My Love of Chemistry I am applying to the university to study chemistry because this is the subject that I enjoy most. As with science in general, I find it interesting, often fascinating, and I feel that I could gain much from studying it at university. Last year I spent a fortnight on work experience, and enjoyed both of my two placements. At Birmingham University School of Chemistry, I was able to use some techniques that were new to me at the time - such as GCMS, HPLC, and I.R. spectroscopy....   [tags: College Admissions Essays] 543 words
(1.6 pages)
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Chemistry of Biology - Chemistry of Biology There are many parts to every living thing. These basic parts have specialized jobs, which give shape and function of everything in the universe. The basic building block for all mass is the atom. There are many different parts to the atom. The electron is a negatively charged particle that revolves around the nucleus in electron shells. The electron is one of the smallest particles that make up the atom. The counterpart to the electron is the proton. This is a larger positive charged particle....   [tags: Papers] 560 words
(1.6 pages)
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The Chemistry of Drugs - The Chemistry of Drugs Delta 9 Tetrahydrocannabinol is the primary psychoactive constituent of Cannibis sativa, and is bound to two cannabinoid receptors: CB1 receptors, located primarily in the brain, and CB2 receptors, located primarily in the periphery (Wiley & Martin 2002). A cannabinoid is defined as a substance that has pharmacological properties that resemble those of delta 9 THC i.e. " a drug that binds to CB1 and /or CB2 receptors in vitro and produces a profile of in vivo effects in the tetrad model" (Wiley 2002)....   [tags: Addictions Marijuana Health Science Essays]
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838 words
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Chemistry Investigation - Chemistry Investigation An investigation to find the optimum temperature that will produce the maximum amount of oxygen from hydrogen peroxide using the enzyme catalase Introduction Hydrogen peroxide is poisonous to all living things if it builds up in the cells but when it is introduced to the enzyme catalase the react between the two makes water and oxygen as byproducts. There are many factors witch affect the production of oxygen these are listed below. For this experiment the enzyme will be held in potato....   [tags: Papers] 817 words
(2.3 pages)
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Chemistry Experiment - Chemistry Experiment An investigation to find out how the rate of the reaction of hydrochloric acid and sodium thiosulphate solution is affected by the concentration of the sodium thiosulphate. I am going to investigate the effect of varying the concentration of sodium thiosulphate solution in a reaction with hydrochloric acid. The theory behind this experiment is that 'increasing the concentration can increase the rate of the reaction by increasing the rate of molecular collisions.' [IMAGE]Sodium Thiosulphate + hydrogen acid sodium chloride + sulphur +sulphur dioxide + water Or [IMAGE]Na SO (aq) +2HCL (aq) 2NaCL (aq) + SO (I) + SO (g) Plan ====...   [tags: Papers] 957 words
(2.7 pages)
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History of Chemistry and Technology - ... Sulfuric acid is a strong acid. More negative metals than hydrogen dissolve in it, forming a salt and water. A dilute solution will not dissolve copper. A more concentrated solution, however, will dissolve copper, oxidizing it at the same time. The next thing is phosphorus is the most important element found in the fifth main group of the period table. It has five electrons in its outermost shell. It is also found in the bodies of both animal and human hosts, in the compound calcium phosphate....   [tags: sulphur, phosphorus, nitrogen] 853 words
(2.4 pages)
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Alchemy -the Predecessor Of Modern Chemistry - There are many ways to examine the subject of alchemy, including alchemy as a source of symbolism, psychology, and mysticism. It has also been an influence on the world view of various writers, artist, and musicians. The focus of this report is alchemy as a pre-chemistry, which gave a new impulse towards the preparation of medicinal remedies and also was a major influence on today's scientific investigations.Alchemy is an ancient art, practiced in the Middle Ages. The fundamental concept of alchemy stemmed from Aristotle's doctrine that all things tend to reach perfection....   [tags: essays research papers] 659 words
(1.9 pages)
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Chemistry and Crime Investigation - Chemistry Reveals Secrets behind C.S.I. A bloodied apartment left by a disgruntled tenant sends Grissom, Sara and Warrick on the journey to discovering a crime. While Catherine and Nick set out to investigate a dead body fully dressed in scuba gear stuck high in a tree in the middle of a raging fire. A couple was about to look at the apartment when they saw the blood stains on the wall and on the floor. They called 911. The C.S.I. (Crime Scene Investigators) came to see the scene of the crime. After some investigations, they thought that the victim was hid in the walls; so they have to break the walls of the whole apartment....   [tags: Forensics] 585 words
(1.7 pages)
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The Importance of Chemistry in Everyday Life - The Importance of Chemistry in Everyday Life During laboratory technique 1 we learned how to separate insoluble liquids from solids by means of filtration, and how to separate a dissolved solid from a liquid by means of evaporation. I have often asked myself the importance of some of the required classes in my schedule and how they can relate to everyday life. I believe in the saying that if you don’t use it you will lose it, meaning that if the concepts I learn cannot be applied to something that I will remember on a daily basis then the possibilities of me not remembering them at all are greater....   [tags: Papers] 398 words
(1.1 pages)
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Chemistry and Technology in Biodiesel - ... The diesel engine was originally intended to run on bio-fuel such as vegetable oil, rather than the petroleum-based diesel fuels mainly used today. Therefore society did not know what it was like to run petroleum-based diesel fuel before biodiesel was invented. Biodiesel gives a cleaner diesel fuel to run in vehicles. It does not give off the bad pollutions like a petroleum-based diesel fuel when burned. Therefore it is affecting society in a positive way, by not polluting the air. The resources to make biodiesel are organic, it is a renewable resource so, practically the resources will never run out to make the fuel so resources do not affect the fuel from being made....   [tags: cleaner fuels for internal combustion engines] 523 words
(1.5 pages)
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Notes on Biology, Cells and Chemistry - REVIEW UNIT 1-THE CELL LIFE *There is no def. for life *Life can be characterized by a list of things that we might agree living thing have in common-organized and contain complex chemical substances, Made up of one or more cells, Use Energy, Have a definite form& Limited size, Have a limited life Span, Grow, Respond to changes in the environment, Reproduce, Evolve over time.*Metabolism is all the chemical reaction occuring in the cell of an organism*All Living things must carry out processes to maitain life and homeostasis- Nutrition, Transport, Respiration, Synthesis and Assimilation, Growth, Excretion, Regulation, Reproduction, Metabolism.CHEMISTRY BASICS *Atoms of the elements are t...   [tags: essays research papers] 916 words
(2.6 pages)
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Chemistry- Collision Theory - .Experiment for Chemistry Coursework For this investigation I am looking at how the concentration of acid can change the reaction and how I can explain this using collision theory. My Prediction: I predict that the greater amount of concentration the faster the reaction will take place. Therefore, particles in the two compounds will collide faster. Due to my prediction if it is correct, I expect to see the cross on the paper disappear faster. As I already know that increasing one quantity will speed up the reaction as the particles are more likely to collide....   [tags: essays research papers] 1125 words
(3.2 pages)
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Metal Chemistry Experiment - Metal Chemistry Experiment Aim My aim is to plan and carry out an investigation that will enable me to put 5 metals in order of reactivity. The 5 metals are zinc, magnesium, copper, iron and calcium. I am also provided with Copper (II) Sulphate solution. Equipment Zinc, magnesium, copper, iron, calcium, 500 cm3 CuSO4, Polystyrene cup with lid, thermometer, measuring cylinder, stop watch, spatula and safety specs. Safety In the experiment I am using substances that are irritant and harmful....   [tags: Papers] 615 words
(1.8 pages)
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Chemistry Case Study - Chemistry Case Study We are the research chemist at Valentines metal extraction company. We have received the following letter: Dear Sirs, We have just discovered a blue mineral which we believe contains a copper compound. Could you please analyse the sample we have enclosed to see if there is any copper in it and see if it can be extracted. Yours Sincerely Freddie Jones I am sure that there is copper in the compound as it is a blue colour. All compounds that are blue or green contain copper in them....   [tags: Papers] 970 words
(2.8 pages)
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Chemistry Investigation on Neutralisation Reaction - Chemistry Investigation on Neutralisation Reaction Plan Neutralisation is the reaction that occurs when an acid has its acidity, that is its hydrogen ions removed by, another chemical containing OH- hydroxide ions. Chemicals that can cancel out an acid in this way are: bases (metal oxides or hydroxides), alkalis (bases that dissolve), metals (e.g. magnesium) or metal carbonates (e.g. marble chips) All of these have a similar way of removing the hydrogen from the acids (they swap it or their metal atoms) but the reactions are quite different....   [tags: Papers] 2294 words
(6.6 pages)
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Chemistry Pilot Experiment - Chemistry Pilot Experiment Aim: The aim was to become accustomed to working with the equipment and to find optimum levels of hydrochloric acid and magnesium ribbon to produce 60cm of hydrogen, a sensible amount to produce in the real experiment. We also began to investigate the effect of temperature on the rate and the result of the product (hydrogen). It also served to discover any errors in the procedure which could affect the final result and prevent us getting accurate results, thus allowing us to eliminate these errors in the real experiment....   [tags: Papers] 671 words
(1.9 pages)
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Chemistry Catalyst Investigation - Chemistry Catalyst Investigation Aim To devise and carry out an investigation into how the concentration of hydrogen peroxide in a solution with distilled water will affect the rate of the catalysed reaction between hydrogen peroxide solution and manganese oxide. I will be studying the chemical catalyst manganese and its reaction with different concentrations of hydrogen peroxide. The liquid hydrogen peroxide decomposes according to the equation: 2H202 (l) 2H20 (l) + 02 (g) So to measure the rates of reactions we will measure the amount of oxygen given off by the reaction....   [tags: Papers] 3891 words
(11.1 pages)
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The Relationships between Chemistry and the End of Somehting - The Relationships between Chemistry and the End of Somehting In Chemistry and The End of Something we are told of different relationships and how they get stronger or in some cases break. Both authors use different literacy techniques that bring out the best and worst of the relationships so that we the readers are succumbed to each twist and turn that the characters themselves experience. Both stories start with very descriptive language before starting to explain the personality and relationships of each character....   [tags: Papers] 699 words
(2 pages)
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A Comparison between Chemistry and the End of Something - A Comparison between Chemistry and the End of Something Both in Chemistry and The End of Something authors explain to the readers how relationships can be essential and also how they can just break and end in an instance. Both the authors use various techniques to explain and describe these relationships using different literary techniques. At the beginning of Chemistry, Graham Swift describes a very secure relationship between: the boy, the grandfather and the mother. The boy is very comfortable with this relationship as he enjoys the company of both his mother and grandfather....   [tags: Papers] 436 words
(1.2 pages)
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Chemistry of Psilocybin and Synaptic Transmitters Involved - Chemistry of Psilocybin and Synaptic Transmitters Involved Psilocybin is a type of hallucinogenic mushroom that is ingested by eating the raw fungi. The mushroom can also be made into a tea and drunk. In some of the later studies done on psilocybin, the drug was synthetically produced and then either inhaled or injected by an IV. The drug enters the blood stream and can cross the blood brain barrier because of it relative metabolic similarity to serotonin (Fuller 1985). This means that since psilocybin is chemical resemblance to the neurotransmitter serotonin, psilocybin can trick the protein channels embedded in the membrane of the blood vessel and pass through as if it we...   [tags: Chemical Drugs Drug papers]
:: 12 Works Cited
1779 words
(5.1 pages)
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Advanced Chemistry Theory - Questions and Answers - 2. What was phlogiston. Based on what theoretical and experimental bases did Lavoisier reject it. According to Bowler’s Making Modern Science, A Historical Survey, the theory of phlogiston was first stated by Johann Joachim Becher in 1667. In 1703, Georg Ernst Stahl, a professor of medicine and chemistry at Halle, proposed a variant of the theory in which he renamed Becher’s terra pinguis to phlogiston theory and it was in this form that the theory had it influence. Phlogiston was a fire-like substance without color, odor, taste or mass that every combustible substance was in part composed of, and it was released during combustion (Bowler 56)....   [tags: History, Refuted Theories]
:: 1 Works Cited
1613 words
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Chemistry and Tissue Engineering: Synthetic Polymers - Synthetic Polymers Synthetic polymers are appealing for tissue engineering because their chemistry and properties are controllable and reproducible. For example, synthetic polymers can be reproducibly produced with specific molecular weights, block structures, degradable linkages, mechanical strength, gelation kinetics and cross-linking modes. These properties in turn, determine gel formation dynamics, cross-linking density, and material mechanical and degradation properties (Jeanie and David, 2003; Armentano et al., 2010)....   [tags: PEG, natural pymers, ] 1340 words
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A Stoichiometry Experiment Involving Potassium Chlorate - Introduction In any science that requires computation, specifically in Chemistry, gathering measurements of various physical and chemical properties need to be strictly accurate and precise for it is in this most crucial phase that either make or break the quality and value of science. No matter how good the experiment was performed, without forethought on how to gather and process data correctly, the collected information would not be reliable enough to draw out a conclusion on it. This experiment is divided into two parts, thus having dipartite objectives for the whole experiment....   [tags: Chemistry] 1258 words
(3.6 pages)
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Separation of M-toluic Acid, Acetanilide, and NaCl - Discussion Overall this experiment was a success yielding 98.8% of the initial 1.34g of known compounds. Looking at Table 1 the problem of separation quickly becomes apparent, both M-Toluic Acid and Acetanilide are insoluble in water. This left two non-salts in one mixture, and what solvent to use to separate these two was the most important question as their respective melting points are also very similar. After looking at both compounds and noticing the M-Toluic Acid (Image 2) had an OH group hanging off of it next to a double bond, the H ion on the end would be susceptible to a base....   [tags: Chemistry] 505 words
(1.4 pages)
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Laws of Conservation of Mass and Energy - Introduction In any science that requires computation, specifically in Chemistry, gathering measurements of various physical and chemical properties need to be strictly accurate and precise for it is in this most crucial phase that either make or brake the quality and value of science. No matter how good one may perform the experiment, without forethought on how to gather data correctly, the collected information would not be reliable enough to draw out a conclusion on it. The main objective of this experiment is to explain thoroughly the reacting system which can be done through scientific observation because it is through this vital step that the facts needed to elucidate the reacting s...   [tags: Chemistry] 1224 words
(3.5 pages)
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Comparing Stories Your Shoes versus Flight versus Chemistry - Explore how conflict between two characters is communicated in the short stories studied. Introduction: The short stories I have chosen to focus on for this essay are ‘Flight’ by Doris Lessing and ‘Your Shoes’ by Michele Roberts. I will briefly refer to a third, Graham Swift’s ‘Chemistry’. I will show the character’s desire for control or continuity which conflicts with the choices or sense of independence of another character also, the theme of the generation gap and imagery, dialogue to convey conflict or a sense of understanding by the characters....   [tags: Doris Lessing Michele Roberts Graham Swift] 1833 words
(5.2 pages)
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chemistry (ocean) - What is an iceberg. Why are they blue or green. An iceberg is a large floating block of freshwater ice that has broken off the edge of a glacier and been carried out to sea; about 90% of its mass lies under the water. The bluish streaks of clear, bubble free ice often seen in icebergs results from the refreezing of melt water which fills crevasses formed in the glacier as it creeps over land. The ice is blue because of the natural light scattering characteristics of pure ice. Occasionally airborne dust or dirt eroded from land ends up on the glacier surface eventually forming a noticeably darkened brown or black layer (in any orientation) within the ice of a floating iceberg....   [tags: essays research papers] 872 words
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Physics chemistry - ATHENS, Ohio -- Today's computers and other technological gizmos operate on electronic charges, but researchers predict that a new generation of smaller, faster, more efficient devices could be developed based on another scientific concept -- electronic "spin." The problem, however, is that researchers have found it challenging to control or predict spin – which keeps practical applications out of reach. But physicists in Europe, California and at Ohio University now have found a way to manipulate the spin of an electron with a jolt of voltage from a battery, according to research findings published in the recent issue of the journal Physical Review Letters....   [tags: essays research papers] 517 words
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The Chemistry of Alcohol - Alcohol is a class of organic compounds that is characterized by the presence of one or more hydroxyl groups (-OH) attached to a carbon atom. Alcohol was unknowingly produced centuries ago when fermentation occurred to crushed grapes (Pines, 1931). In today’s society alcohol is produced for the use of household products such as varnishes, cleaning products, but is more commercially important in the liquor business. A chemical process called fermentation accomplishes the production of ethanol, the alcohol or liquor....   [tags: fermentation process, ethanol, liquor]
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1138 words
(3.3 pages)
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History and Uses of Aspirin - Topic Definition Aspirin was invented in late 1890s. More than a hundred years later, due to its fever-reducing and anti-inflammatory effects, it has become one of the world’s most extensively used medicines. Interestingly, this famous medicine, at the beginning, was invented by a German scientist in order to find out an effective remedy to cure his father’s pain. History Innovated by the fact that ancient people use willow bark to ease pain, the first chemically pure and stable acetylsalicylic acid was synthesized by a German chemist called Felix Hoffmann, in 1897 (Bayer AG, 2011)....   [tags: Chemistry, Prostaglandins]
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495 words
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Temperature and its Effect in Enzyme Catalyzed Reactions - ... The first catalase ever to be noted as a substance was discovered in 1818 by Louis Jacques Thénard. He is the man who discovered hydrogen peroxide. He suggested that its breakdown was caused by a substance. In 1900, Oscar Loew was the first person to give it the name ‘catalase’, and also noticed that its presence was found in many plants and animals. Also, in 1937 the catalase enzyme from beef liver was crystallized by James B. Sumner and its molecular weight was worked out in 1938. (www.Chemistry explained.com; Chemistry Encyclopedia) Usually enzymes have three dimensional structure and always end with the letters 'ase'....   [tags: Cells, Chemistry] 557 words
(1.6 pages)
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Sodium (Na) - Sodium (Na) Sodium has an atomic number of 11 and a mass of about 23g. It is a silvery white-metallic element classified under the alkali metals. Sodium has been known since early times and was used by the people of Mesopotamia and Egypt to make glasses. Sodium is the sixth most common element found on the earth. It is usually not found in nature but more often in compounds such as salt (NaCl). Sodium conducts heat and electricity easily. Without this element life could not exist. Each compound is used for a certain reason....   [tags: Science Chemistry] 732 words
(2.1 pages)
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Magnetic Fluids - 1.1 PRELUDE: The phenomenon of ferromagnetism is associated only with the solid state of matter; like iron, nickel, cobalt and some rare earth metals and their alloys. Thus, up to now, there is no intrinsic homogeneous fluid having ferromagnetic properties; although, theories admit the possibility of ferromagnetism in the liquid state, and suggest that there is no inherent reason why they should not exist [1-3,5]. Ferromagnetism occurs when paramagnetic ions in a solid lock together in such a way that their spins all point (on the average) in the same direction ....   [tags: GCSE Chemistry] 1353 words
(3.9 pages)
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Chemistry planning and designing lab - Lab# Date: Topic: The reactivity series Problem: Which of the following metals are more reactive with acids – magnesium, zinc, aluminum, iron, lead, and copper. Hypothesis: Aluminum is the most reactive with acids because it occurs in group III. Aim: To perform a comparative test on which metal is the most reactive with acids. Experiment: A comparative test is done using time to find which metal has the fastest reaction Skill: P & D Apparatus : Equipment: 1. 6 beakers 2. Water 3. Measuring cylinder 4....   [tags: essays research papers] 344 words
(1 pages)
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Chemistry Sodium Thiosulpahte - Introduction Over the next few weeks I will be doing several attempts of the same experiment that involves the reaction of sodium thiosulphate and hydrochloric acid, I will be closely watching the reaction and how long in takes for the reactants to react. As yet I have not decided which of the several variables I will be changing. I also aim to take results of the reaction down onto a table, which then will be transferred onto a line graph, which will show us the nature of the reaction. Variables There are five factors which affect the rate of a reaction, according to the collision theory: temperature, concentration (of solution), pressure (in gases), surface are (of solid reactants), and...   [tags: essays research papers] 1261 words
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Chemistry - Chemistry Aim: I am trying to find out whether the equation 2CuCO3 ® Cu2O + 2CO2 + ½O2 or the equation CuCO3 ® CuO + CO2 is correct for the decomposition of copper carbonate. Introduction: This is my background research, this information may help me when I am trying to see which equation is correct. I have used the book Chemistry 1 by OCR as my reference. Relative Atomic Mass: This is the mass of an atom of the element relative to the mass of an atom of carbon-12 which has a mass of exactly 12....   [tags: Papers] 750 words
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Green Chemistry - Green Chemistry Many companies all over the world produce chemicals for their products that are harmful to the environment, human health, and to all living species. Green Chemistry is the use of chemistry for the prevention of chemical pollution to the environment by using chemicals that are benign, or not harmful. The Environmental Protection Agency (EPA) states that the mission of Green Chemistry is, “To promote innovative chemical technologies that reduce or eliminate the use or generation of hazardous substances in the design, manufacture, and use of chemical products.” Green Chemistry contains any aspects and types of chemical processes that reduce the negative ef...   [tags: essays research papers] 453 words
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Green Chemistry - If We Had Known About Green Chemistry In 1951, How Would Things Be Different Today. Green Chemistry is the making of chemical products that reduces or eliminates the use and production of hazardous substances in the designing, making, and use of chemical products. It involves the designing and re-designing of chemical creation and chemical products to prevent pollution which will therefore solve environmental problems. Green Chemistry is environmentally safe and has very little side effects on human health and the environment....   [tags: essays research papers] 724 words
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College Application Essay on Chemistry - I have always been inspired by the workings of chemistry and mathematics. My studies of these subjects have developed my understanding and have made me pursue my interest in these two topics. I want to take up chemistry as it involves a large amount of mathematics which I value and understand to be challenging, yet very enjoyable, as there is always an alternative route to obtain the answer. Additionally, I am drawn to the course because it is a mixture of all these exacting subjects, forming a degree that is very demanding and stimulating....   [tags: Math, Challenge] 556 words
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Modern Chemistry and Diseases - Chemistry is the branch of science that deals with the identification of the substances of which matter is composed;the investigation of their properties and the ways in which they interact,combine,and change;and the use of these processes to form new substances. Chemists believe that chemistry is the study of matter and the study of change. Chemistry is in our everyday life,it has to deal with the food we eat,the air we breathe,and almost everything we see or touch. The reason chemistry is so important is because it's the foundation to life, like humans and other living organisms....   [tags: history, Marie Curie, organisms] 579 words
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Chemistry and the Structure of DNA - ... The backbone of the nucleic acids consists of the interaction between phosphate groups and the hydroxide groups of nucleic acids. These are held together by covalent bonds called phosphodiester bonds. The helix itself is held together by hydrogen bonds. Although hydrogen bonds are weak individually, there are so many of them within DNA that the strands are held tightly together. Without basic chemistry the structure of DNA would be a mystery. The instructions to make a protein are coded by DNA....   [tags: function, protein, products] 599 words
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The Impact of Chemistry on Medicine - ... He was born in 1822 and lived until 1895. He was able to create these vaccines through a process called pasteurization. Another thing that chemistry has done for medicine is discovering things such as DNA and RNA. Without the discovery of these things we would not have known about things such as DNA mutations or genetics in general. The chemist who discovered the DNA structure is a woman by the name of Rosalind Franklin. As you can see chemistry has given modern day medicine everything it is based on....   [tags: a chemist discovered DNA, Rosalind Franklin] 571 words
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Chemistry: The Other Foreign Language - Chemistry: The Other Foreign Language How is it that a student can come to my office hours, explain the complicated concepts that a problem set question is based on, even go as far as to intuit the right approach for solving the problem, and yet, is not able to derive the right answer. I am sure many GSIs of general chemistry, or of any introductory physical science class for that matter, have asked themselves this question numerous times throughout a semester. One of the biggest problems facing students in general chemistry classes is their inability to communicate what they actually know about the concepts on an exam or a problem set....   [tags: Graduate Admissions Essays] 599 words
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The Chemistry of the Human Digestive System - Over the course of time there have been many pondering questions and theories about everyday life. Using Chemistry, the study of matter, those questions have been able to be answered. From the mixture of gases in the air we breathe to the organic substance of plastic, chemistry can be seen everywhere. However, most people misunderstand the power of chemistry in our own bodies. How is it that a simple loaf of bread, once consumed, can turn into fuel for the human body. Using the digestive system and its many organs through the process of digestion and metabolism is how our bodies receive the energy it needs to continue....   [tags: Biology, Esophagus, Stomach] 1350 words
(3.9 pages)
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The Gender and Chemistry of Suicide - The Gender and Chemistry of Suicide Suicide is a perplexing aspect of human behavior. There are hundreds of possible causes for suicide, but one underlying reason usually prevails. When life seems unbearable and hopelessly dreary, the only apparent way out for some individuals is to end their own painful existence. To other mentally "stable" individuals, suicide can be a question that can never be answered. Suicide is final, and no one comes back to explain why the decision was made to end their own life....   [tags: Papers] 940 words
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The Value of Chemistry in Society - The Value of Chemistry in Society For some time in the modern world, and especially subsequent to the events of September 11th, there has been a wave of concern regarding chemistry and its potential destructive powers. There are many people who hold a fearful attitude towards the chemical industry and its products. This is because the threat of chemical and bio-chemical weapons is very real and is a negative aspect of the business. Also it is often deemed environmentally unfriendly and unsafe for the nearby public....   [tags: Papers] 1239 words
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Chemistry Study Guide - Chemistry Study Guide Chapter 9- Thermodynamics KE= ½ mv2 w= F∆x w= force × distance ∙ A state function refers to a property of the system that depends only on its present state. ∙Internal Energy = heat + work ∆E = q + w ∙Pressure = Force/Area = P = F/A ∙Work= - external pressure × change in volume w = - P∆V Enthalpy H = E + PV qp = ∆E + P∆V ∆H = qp ∆H = H products – H reactants Ideal Gas Law PV = nRT Energy “heat” = 3/2 R∆T Cv = 3/2 R = “heat” required to change the temp of 1 mol of gas by 1K at constant volume Energy required = “heat” – energy needed...   [tags: essays research papers] 523 words
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Chemistry Lab: Molecular Formulas - In 2 week long Chemistry lab I was given unknown liquid numbered 29 which I had to find through the experiments that I learned from the beginning of the semester. After conducting experiments I acquired empirical formula, molecular weight, molecular formula, density and boiling point temperature in order for me to find what the substance is. Using molecular formula I plan on looking into few websites that my professor provided us such as: ChemBlink, ChemSpider and PubChem to help me find what substances I should be looking into....   [tags: ChemBlink, ChemSpider and PubChem] 1406 words
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Green Chemistry: Concept of Atom Economy - The concept of Green Chemistry helps scientists utilize materials found here on Earth to better improve our environment from an internal decadence. With the exponentially increasing number of the human population there creates an enormous strain of the use of our natural resources, which thereby requires a need to produce an alternate source, either through chemical, or machinery means, which then leaks problems, such as pollution, into our environment. However, using the concepts of Green Chemistry, which includes, enhanced atom productivity, and the usage of non-renewable resources along with many others, scientists can better neutralize the damaging effects of pollution in our environmen...   [tags: materials, natural resources, pollution]
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Love the Right Chemistry by Anastasia Toufexis - ... A simple action such as a deep look into someone's eyes can start the simulation in the body that an increased production of hand sweat will start. The tingly feeling inside your body is a result of a scientific delineation which makes the concept of love more concretely and more factually mainly for researchers and the wider world.The main idea the author tries to bring across is that love is very much controlled by our body and brain. Although that biochemical events must occur to charity functions to be able to exhibit, we are the first one who starts with our own idea of who it is perfect for ourselves....   [tags: biochemical events, romance] 540 words
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Chemistry Advances in Computers with the Work of Transistors - ... No cell phones. Can you even imagine. Nope. When we had created something like a transistor but definetly did not have the power of a transistor. A vacum tube. It used the Nike system. It was big and heavy so that it could hold all of the vacum tubes. For the precision to get the pure Nike accuracy you had to use analog adjustments. Todays transistors requires 1/15 the man power, is 1/15 the weight. And is more effective, easier to keep working and accurate. How did natural resources limit or advance your technology....   [tags: technology, circuts, resources, society] 575 words
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Improvements on the Performance of a Microbial Fuel Cell for Biological Treatment of Hexavalent Chromium - Chromium in the natural environment General A great variety of chemical compounds can be found in water, not all of them of the same concentration or significance. Even with respect to the same chemical element, different aquatic conditions like reduction/ oxidation potential and pH may bring out a variety of different properties with varying importance. Among other inorganic contaminants, chromium can be found in water as a result of anthropogenic processes like electroplating, leather tanning, textile and pigment manufacturing and wood preserving (U.S.E.P.A., 2000)....   [tags: Chemistry ]
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The Chemistry Times: Why I Want to Study It - To me, chemistry is an ever evolving field, like making a strand of nylon, it is always expanding. Chemistry is advancing at an inconceivable speed, with discoveries varying enormously from the structure of an atom to the synthesis of aspirin. One aspect of chemistry that I admire is that the content is not only supported by the theory but can also often be demonstrated practically, this is shown well when analysing rates of reaction, therefore providing a stronger understanding of the topic. The most fascinating part of chemistry is the transformation of raw materials into useful products and this is demonstrated extremely well by the reaction between 1,6-diaminohexane solution and decanedi...   [tags: theory, practically, reaction, transformation] 558 words
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How Chemistry and Physics Affect Every Part of the World - An idea that has both perplexed and intrigued me is the concept of how science, in my case chemistry and physics, directly impacts every single part of the world. I have always been puzzled by the secrets of what the world is composed of and how exactly everything works in the world. However, it wasn’t until recently in high school that I began to grasp the basic fundamentals of how the world actually does operate. In order to understand the origin of this desire to attain more knowledge and discover more about the way life works, I must provide a small anecdote from last year in my AP chemistry class....   [tags: fundamentals on how the world works] 522 words
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What I have Learned in Chemistry, Grade 10 - From the unit of chemistry in grade ten science, the students have learned many things from different types of elements in the chart all the way to how each element impacts the daily life each student or even adult lives in. Some of the things I as a student have learned include how to draw the different elements in a bohr rutherford diagram, balancing chemical equations, types of chemical reactions, and even information about the different types of acids and bases. Although there were many other things in the unit, these four definately helped me learn about chemistry in a more in-depth way, as well as teaching me something very new since these were some things a few of the students had nev...   [tags: Science, Atoms] 859 words
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Contribution of Thomas R. Cech to the Field of Chemistry - Contribution of Thomas R. Cech to the field of Chemistry Thomas Robert Cech is a well-known chemist who used his knowledge of science to discover several theories in order to enhance the study of molecules and atoms in different matters. In summary, Thomas Cech received his PhD degree in Chemistry from the University of California. He was also a lecturer at the University of Colorado where he lectured on chemistry and biochemistry. Cech’s research and hard labour has brought many awards to him and one of the major awards he received is the Nobel Prize in Chemistry in 1989....   [tags: RNA molecules, dna]
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History of Chemistry and Nanotechnology - ... However, all of the above examples of technologies are not considered nanotechnology, mainly because they do not use specific atomic instructions and actions to achieve desired properties and functions of the materials or products. As we progress into a whole new spectrum of technological advances, one of those will be Nanotechnology. It will be highly useful and beneficial to humanity as a whole. Nanotechnology offers the promise of new products to fight disease, improve energy efficiency, and clean up toxic chemicals....   [tags: science of the very small] 569 words
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Chemistry of Pool Water - Introduction The objective of pool inspection is to protect public health and safety by ensuring the pools are maintained and operated in compliance with the regulations. There are many different aspects of the swimming pool that need to be checked to ensure its safety, not only the water quality, but also the areas around the pool including equipments, recirculation system and etc. Routine pool inspections allow the operators and the inspectors to identify potential problems that require repair or adjustments to avoid accidents from occurring....   [tags: Chemistry] 918 words
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Chemistry before Technology: Alchemy - ... According to the New York Times article “The Magical Origins of Modern Chemistry” alchemy was a philosophy and practice that sought to understand the nature of matter. Because of the alchemist they were able to make porcelain, pigments, perfumes, gunpowder, and pharmaceuticals. Before technology was brought into chemistry it took longer for scientist to discover certain items and chemical compounds and it took them longer to figure out how to do certain things. Before there were phones and computers scientist and chemists could not share their data with others in hope to gain more knowledge and ideas on how to make chemical reactions work....   [tags: history of chemistry, medical research] 800 words
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History of Chemistry: Medicine and Technology - ... Also when someone came up with a new type of virus or some symptom or something that needed medical attention, was complicated for them to try and figure what it was or if it was the weather change. But thankfully technology has been improved to help us live better and in a safe environment. Natural resources may limit technology but it also advances technology. In the many ways that it advances or helps technology are that; it reduces or eliminates the use or generation of hazardous substances....   [tags: cures, environment, lives, chemistry] 841 words
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History of Chemistry: Chemical Weapons - ... Next is Nerve Agents, which are considered to be organophosphates. Nerve agents work by stopping flow of ACh, which is responsible of muscle contraction. When effected it leaves you with no control of your body, leading you to a slow painful death. Then, there is Blood Agents. Blood Agents are fast acting, cyanide or arsenic type of positions. They work quickly and go into your bloodstream. At short term exposures it can just cause dizziness and nausea. But long term can cause brain damage and muscle paralysis....   [tags: chemistry, technology, victims, types] 798 words
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Chemistry Coursework – Fuels - Chemistry coursework – Fuels Planning ======== Aim --- In this investigation I will have to find out which of the alcohol fuels: methanol, ethanol, propanol and butanol, is the best. The ‘best’ one will be the one which creates the most energy whilst burning. Introduction and prediction --------------------------- A fuel is a substance burned for heat or power. The best type of fuel is one that: can be transported safely without the worry of it catching on fire, gives out a lot of heat for a certain mass, does not cost very much, lights quickly, burns slowly, is safe to use and does not give off any form of polluting gases....   [tags: GCSE Chemistry Coursework Investigation] 948 words
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Chemistry - Robert Boyle is considered both the founder of modern chemistry and the greatest English scientist to live during the first thirty years of the existence of the Royal Society. He was not only a chemist and a physicist as we know him to be, but also an avid theologian, a philanthropist, an essayist, and a beginner in medicine. Born in Lismore, Ireland to Richard Boyle, first earl of Cork, and Katherine Fenton, his second wife, Boyle was the youngest son in a family of fourteen. However he was not shortchanged of anything....   [tags: essays research papers] 924 words
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The History of Chemistry and Its Influence on Society - ... Other important metals that were discovered and that seemed to be popular were silver, copper, tin and meteoric iron. During the early ages of Metallurgy, the methods of purification of metals were looking to be found. But surely the found more gold and came to be way more amused by that again. They called it the precious metal. The next stage of time was known as the Bronze Age. This is when they discovered that certain metals can be recovered by their ores by heating the rocks in fire. Mostly tin, lead, and copper, this process was called smelting....   [tags: what was it like before chemistry?] 731 words
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Application Essay for the Ph.D Program in Chemistry - The decision to continue my education by pursuing a Ph.D in chemistry stems from my desire to be a lifelong learner and the satisfaction I have received from my research during my undergraduate studies. After visiting the University of Wisconsin-Madison during the CHOPs visitation, and speaking to the the faculty and students, I saw they share the same passion as myself in solving new problems and having an extensive education, and is why I have chosen to apply to its Ph.D program in chemistry. What do you intend to study in grad school and why....   [tags: education, chemistry, undergraduate] 825 words
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History of Chemistry: Improvement in Battery Technology - ... Although Benjamin Franklin did not construct the battery, he was the first person to use the term “battery” to describe a set of capacitors he used for electricity experiments. It was Alessandro Volta who invented the first true battery in 1800. (3) The battery was called the Voltaic Pile and had pairs of copper and zinc disc on top of each other, separated by a layer of cloth or cardboard soaked in brine. The Voltaic Pile produced a continuous and stable current and did not lose much charge over time or when not being used....   [tags: devices, electrical, chemistry, battery] 893 words
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Chemistry lab report - The goal of the project was to characterize an "unknown" organic acid in order to make a proper identification of the acid, while learning proper techniques for scientific measurement and analysis of error. In order to ensure the most accurate data, a purification was performed by the process of recrystallization. To perform the recrystallization the powder was dissolved in a minimal amount of hot ethanol/H2O solvent that allowed the unknown powder to crystallize properly when cooled. This process allowed for the removal of soluble impurities when suction filtered....   [tags: Chemistry] 912 words
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A General Review of the Chemistry and Utility of Scopolamine - The study of scopolamine involves aspects that are manifold and complex. In this investigation, the pathways for biological and laboratory syntheses were elucidated, in additional to the physical and chemical properties and characteristics of scopolamine. 13C-NMR and H-NMR were generated from collected data, and the isolation and uses of scopolamine were discussed. Introduction Scopolamine's uses have roots in ancient times and have pervaded into the present. This heterocyclic tropane alkaloid is naturally found in Solanaceas plants and can be prepared in the laboratory from various precursors....   [tags: Chemistry]
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The History of Chemistry Up to the XIX Century - ... Early civilizations, such as the Egyptians and Babylonians amassed practical knowledge concerning the arts of metallurgy, pottery and dyes, but didn't develop a systematic theory.A basic chemical hypothesis first emerged in Classical Greece with the theory of four elements as propounded definitively by Aristotle stating that that fire, air, earth and water were the fundamental elements from which everything is formed as a combination. Greek atomism dates back to 440 BC, arising in works by philosophers such as Democritis and Epicurus....   [tags: chymistry, a scientific art] 915 words
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History of Chemistry: The Influence of John Dalton - ... Although this idea has been around for centuries, ideas against the atomic theory have been around just as long. The philosopher Aristotle, argued against the existence of atoms all together. Roman Catholic theologians during the Middle Ages in Europe also backed up the argument of Aristotle. Overall, the atomic theory has been an on going argument for many centuries and is still being tested today. Then, in 1808 John Dalton came up with the Modern Atomic Theory. During this time there were laws called the law of conservation of mass, the law of definite proportions, and the law of multiple proportions....   [tags: chemisty, law, theory, atoms] 855 words
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The History of Chemistry - ... What is the point of studying chemistry. Because we use all the time, especially when we are cooking. If you know how to use chemistry to your knowledge, then it can help you make everyday choices. There are many people who work in the field of chemistry. People from doctors to truck drivers. People often wonder what the importance of chemistry is. It is the study of matter, and matter is all around us. Chemistry is also explains things like cooking, cleaning, medicine, and many other things....   [tags: alchemy, pure sciences] 789 words
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The Science Of Chemistry - The Science Of Chemistry There are many different types of sciences. Every type is important. Some sciences were actually created by other sciences. Chemistry is one of the main sciences that actually was the building block for other sciences like Biology. Chemistry does not only happen at school. Chemistry is all around us it's in our everyday life. Chemists are life savers;they create vaccines and medicines for people who need them. Chemists also work with different type of scientists to create different technology that could change the world forever....   [tags: democritus, atom, vaccines]
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The History of Chemistry - ... Chemistry is important to everyday life, because everything is made of chemicals. Chemistry is outside with the leaves changing colors in the fall. The supplies used to do household chores are made from chemistry. Chemistry is literally in everything from the food you eat to the air you breathe. It’s in your soap, your emotions, and everything you can see or touch. Antoine Laurent Lavoisier is considered to be the father modern day chemistry. He had a mighty impact on the way the world views chemistry today....   [tags: alchemy, importance] 840 words
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The History of Chemistry - ... He discovered that the volume of a gas decreases with increasing pressure and vice-versa (Boyle’s Law). Antione-Laurent Lavoisier, another leading thinker of the Chemical Revolution, gave society a new understanding of the chemical role of gasses in explaining combustion, respiration, and other processes. These leading scientists and their forerunners made Chemistry a science that their successors would continue to study (Chemical Heritage Foundation). Elements—pure substances that cannot be broken down into simpler forms—and compounds—mixtures of two or more elements—form all types of matter....   [tags: scientific fields of study] 856 words
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The History of Chemistry - ... These are just a few of the stuff we use today in chemistry. So what was society like without all this stuff we have today. Well we could say they weren’t as affective of some of the stuff we have today. For intense they had some of the stuff we have to day but ours is just more advanced now. The more advanced we are the more we will be better off in society with the stuff we have in the future. Natural resources help with chemistry in many ways like materials in chemistry will construct many of the required solutions to some of the most important energy and environmental problems in today's society (Royal Society of Chemistry 2013)....   [tags: pure sciences, alchemy] 774 words
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The History of Chemistry - ... He was also the founder of modern mineralogy, and in 1751, he also discovered the mineral scheelite, tungsten. Joseph Black had isolated carbon dioxide in 1754. He soon called carbon dioxide “fixed air.” In 1758, joseph used a concept called latent heat to show the thermochemistry of phase changes. Henry Cavendish had isolated hydrogen in 1766. He soon called “inflammable air.” In 1773, Carl Wilhelm Scheele discovered oxygen. He came to call this “fire air.” Scheele had not published his achievement soon enough, and Joseph Priestley did instead....   [tags: Lewis electron dot diagrams,] 962 words
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The History of Chemistry: Chemistry is True Science - ... So what was the world like before Chemistry you might ask yourself. Life before Chemistry was much more difficult. Ancient Civilizations did not know which chemicals to pair with what, leaving them with lives that were much more difficult than what was needed. After the discovery of Chemicals, and the use of science in everyday lives, the environments became more and more structured. Humans began to use this way of life and channel it into their own, from the mixture of certain chemicals to make pottery, to extracting medicine out of plants....   [tags: society, impact, technology] 614 words
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