Search Results copper

Free Essays Unrated Essays Better Essays Stronger Essays Powerful Essays Term Papers Research Papers

Your search returned over 400 essays for "copper". To narrow your search results, please add more search terms to your query.
[1] [2] [3] [4] [5] [Next >>]

These results are sorted by most relevant first (ranked search). You may also sort these by color rating or essay length.
Title Length Color Rating  
Copper Pharmaceuticals Case Study - Key facts • Copper pharmaceuticals, Inc were a major manufacturer for prescription drugs for medical and dental professions. • Sales are done mainly with the detailers who were pharmacy school graduates and had couple years of experience as registered pharmacists in drugstores. • Bob Marsh, with CPI for 12 years, married and had two children • Marsh's initial salary was $35,000 and been raised to over $60,000 throughout his time with CPI • Marsh has 6 different field supervisor throughout the time he was with CPI • 60% of detailers had 10 or more years with CPI and only 8% turnover rate per year....   [tags: Case Study Copper Pharmaceuticals, solution] 1341 words
(3.8 pages)
Unrated Essays [preview]
Copper - Weil 1 Copper is one of the earliest elements known to man. Because of its distinct red color, Copper is very easily identified. In the ancient times, copper could be found lying in the ground in its unattached state without interaction to other substances. Copper and its compounds have many uses in today’s society. Copper has many chemical properties that make it unique. The Atomic number of copper is 29. An Atomic number is a measure of the amount of protons in the nucleus of an atom....   [tags: essays research papers] 1063 words
(3 pages)
Better Essays [preview]
Copper Mining - Copper Mining Copper mining has become a very important industry in today’s society. It is also one of man’s oldest commercial activities. There are many steps from finding a mine site to producing a product made of copper or a copper alloy. The mining industry has also had many important developments from the time the first mine was formed in Rio Tinto in 3000 B.C. The earliest copper sources were globules and chunks of native copper found on the Earth’s surface. After we quickly exhausted the limited amount of native copper, we were forced to look underground for more sources....   [tags: Natural Resources Minerals Miners Essays]
:: 2 Sources Cited
599 words
(1.7 pages)
FREE Essays [view]
Electrolysis of Copper in Copper Sulphate Solution - Electrolysis of Copper in Copper Sulphate Solution Introduction Aim This is an investigation into how temperature affects the amount of copper lost from the Anode and gained on the Cathode during electrolysis. Electrolysis is… The chemical change by passing electric charge through certain conducting liquids (electrolytes). The current is conducted by migration of ions - negative ones from the Anode (positive electrode), and positive ones to the Cathode (negative electrode)....   [tags: Papers] 1485 words
(4.2 pages)
FREE Essays [view]
Copper Mountain - ... A beautiful and thriving ecosystem is in danger of being destroyed…it’s already happened at the Copper Mountain Ski Resort in Colorado. So what are some of the impacts to prepare for if the Mt. Ashland expansion goes forward compared to what happened at Copper Mountain. Here are three integral impacts to consider: habitat, watershed and environmental scorecards. Habitat Concerned locals and several environmental groups such as Wild Mount Ashland (WMA), EPA, Phronesis, Ski Area Citizens Coalition (SACC), Rogue Group Sierra Club (RGSC), and many others voice serious concerns about the endangered wildlife and rare plant species that habitat Mt....   [tags: Environmental Issues] 1105 words
(3.2 pages)
Better Essays [preview]
The electrolysis of copper sulphate solution and copper electrodes - The electrolysis of copper sulphate solution and copper electrodes Introduction: For my GCSE Chemistry assessment I will be investigating the electrolysis of copper sulphate solution with the copper (ii) plates. Aim: My intention for this observation is to find out how the current has an effect on the mass of copper deposited in the electrolysis of copper sulphate and copper (ii) plates. Safety Precautions: In this investigation I will make sure that everything is as safe as possible and that there are no chances of accidents occurring....   [tags: GCSE Chemistry Coursework Investigation] 1255 words
(3.6 pages)
Better Essays [preview]
Copper as a Valuable Resource - Copper as a Valuable Resource Introduction: Copper is a valuable resource whose intricate steps from initially a raw product to ultimately the final product may be traced. The life of copper can be followed from its extraction, processing, and disposal. All of these steps, including the wastes produced, have an impact on human life and the environment. The developments of resources, such as copper, have helped change history. The environmental impacts of these changes may also be felt....   [tags: Essays Papers]
:: 14 Sources Cited
2767 words
(7.9 pages)
Powerful Essays [preview]
An Investigation into Electrolysis - Copper Sulphate - An Investigation into Electrolysis - Copper Sulphate Introduction Decomposition caused by electricity is called electrolysis. The electrical energy causes a chemical change. When a salt is dissolved in water, its ions become free to move so the solution can be "electrolyzed." The products of the electrolysis depend on the chemical solution, its strength and the type of electrode. The cathode is negatively charged and therefore attracts to it positive ions. E.g. hydrogen. The more reactive substance stays in the solution whereas the less reactive is released and appears as a gas (hydrogen) or a coating of metal....   [tags: Papers] 1372 words
(3.9 pages)
FREE Essays [view]
The Factors that Affect the Mass of Copper - The Factors that Affect the Mass of Copper Background Information ====================== Electrolysis is the decomposition of a molten or aqueous compound by electricity. Electrolysis occurs only in liquids called electrolytes. Electrolytes are compounds, which conduct electricity when molten or dissolved in water, but not when they are in a solid state as the oppositely charged ions are held together by strong ionic bonds in a giant lattice and this means electricity cannot pass through it and the ions are unable to move....   [tags: Papers] 4314 words
(12.3 pages)
FREE Essays [view]
Copper Sulfide? Who Knows? - Objective: The objective of this lab was to calculate the ratio of the copper sulfur compound to conclude whether the compound is made of copper I or II. Procedure: <ol> <li value="1"> A copper coil was twisted. <li value="2"> The mass of the copper coil was found. <li value="3"> The copper coil was placed in a crucible. <li value="4"> A sulfer powder was added to the crucible to cover the copper coil. <li value="5"> The cover was placed on the crucible. <li value="6"> The Bunsen burner was lit....   [tags: Chemistry] 580 words
(1.7 pages)
Better Essays [preview]
Investigating The Electrolysis of Copper - Investigating The Electrolysis of Copper Two copper electrodes are cleaned, dried, weighed and attcahed to a power pack. One is attatched to the anode and the other is connected to the cathode. Then both the copper electrodes are placed in a beaker of copper sulphate solution (which is acting as the electrolyte) and the power pack is turned on. After a certain amount of time the copper electrodes are detached and the cathode washed in distilled water, then acetone and weighed when dry....   [tags: Papers] 462 words
(1.3 pages)
FREE Essays [view]
The Decomposition of Copper Carbonate - The Decomposition of Copper Carbonate Copper has two oxides, Cu2O, and CuO. Copper carbonate, CuCO3 decomposes on heating to form one of these oxides and an equation can be written for each possible reaction Equation 1: 2CuCO3 (s) [IMAGE] Cu2O (s) + 2CO2 (g) + 1/2O2 (g) Equation 2: CuCO3 (s) [IMAGE] CuO (s) + CO2 (g) The aim of this investigation is to prove which of these two equations is correct. From the equations above we can see that in both reactions gas is evolved and by collecting the volume of gas produced we can accurately say which reaction is taking place....   [tags: Papers] 1860 words
(5.3 pages)
Better Essays [preview]
The Electrolysis of Copper Sulphate - The Electrolysis of Copper Sulphate Aim Analyse and evaluate the quantity of Copper (Cu) metal deposited during the electrolysis of Copper Sulphate solution (CuSo4) using Copper electrodes, when certain variables were changed. Results Voltage across Concentration of solution electrode 0.5M 1.0M 2.0M 2 5.0 10.6 19.5 4 10.5 19.8 40.3 6 14.3 26.0 60.2 8 15.2 40.4 80.3 10 15.0 40.2 99.6 12 15.1 40.0 117.0 Analysing/Conclusion The input variables in this experiment are; concentration of the solution and the voltage across the electrodes....   [tags: Papers] 588 words
(1.7 pages)
FREE Essays [view]
The Rate of Electrolysis Of Copper Chloride Solution - The Rate of Electrolysis Of Copper Chloride Solution Introduction We are going to find out what things affect the rate of Electrolysis and to find this out we will use Copper chloride salt dissolved in water to form a solution. The salt is dissolved in water becausechemical compounds when in a molten state or when dissolved in water exist in the form of ions that are capable of movement, meaning their molecules become dissociated into positively and negatively charged components, which have the property of conducting an electric current....   [tags: Papers] 1044 words
(3 pages)
FREE Essays [view]
Volume's Effect on a Copper Sulphate Solution - Volume's Effect on a Copper Sulphate Solution We are trying to find out if the current though a copper sulphate solutions volume is increased. To find this information out I shall perform an experiment using the following equipment; · 1 power pack · 1 beaker · 2 carbon rods for anode and cathode · 1 ammeter · 1 measuring cylinder · 2 crocodile clip wirers I shall also be using 60cm3 volume of copper sulphate in my preliminary results to decide upon the concentration of copper sulphate and the voltage I shall use....   [tags: Papers] 922 words
(2.6 pages)
FREE Essays [view]
Construction: Depletion of Copper, Tin, & Zinc - Construction: Depletion of Copper, Tin, & Zinc Building Construction procedures involve the erection of various types of structures. The major trend in present-day construction continues away from handcrafting at the building site and toward on-site assembly of even larger, more integrated subassemblies manufactured away from the site. Construction in the United States is the product of a diverse group of subindistries, with many individuals and organizations involved in the construction of a single structure, from the manufacture of necessary components to final assembly....   [tags: Geology] 1786 words
(5.1 pages)
FREE Essays [view]
Investigation of the Thermal Decomposition of Copper Carbonate - Investigation of the Thermal Decomposition of Copper Carbonate Aim: Copper has two oxides, Cu2O, and CuO. Copper carbonate, CuCO3 decomposes on heating to form one of these oxides and an equation can be written for each possible reaction Equation 1: 2CuCO3 (s) Cu2O (s) + 2CO2 (g) + O2 (g) Equation 2: CuCO3 (s) CuO (s) + CO2 (g) The aim of this experiment is to prove which equation is correct. This can be done by volumetric analysis i.e. calculating the volume of gas produced. This is then compared to the calculated volume of gas produced in each equation and the equation with the nearest volume of gas is correct....   [tags: GCSE Chemistry Coursework Investigation]
:: 5 Sources Cited
1434 words
(4.1 pages)
Better Essays [preview]
Determining the Correct Equation for the Decomposition of Copper Carbonate - Determining the Correct Equation for the Decomposition of Copper Carbonate Introduction and background information: Important points to note: ‘At room temperature, 25°C and atmospheric pressure at 1 atmosphere, I mole of any gas will occupy a volume of 24 dm³.’ We will need this to work out how much copper carbonate to decompose to obtain a sufficient amount of carbon dioxide gas. To work out the amount of copper carbonate to use I will need to use the following equations: Number of moles = Mass / Mr PV = nRT P = Pressure V = Volume n = Number of moles R = Gas constant T = Temperature We can substitute n (number of moles) with the first equation to get: PV = (mass/Mr) x RT When rearranged this gives: Mass = (Mr x PV) / RT This will allow me to work out the mass needed....   [tags: Papers] 784 words
(2.2 pages)
FREE Essays [view]
An Investigation Into The Effect Of An Electric Current On Copper Sulphate Solution - An Investigation Into The Effect Of An Electric Current On Copper Sulphate Solution Aim In this experiment my aim is to enforce and develop ideas about the investigation into the effect of an electrical current through copper sulphate solution. Safety - Electricity is dangerous - Aware of coppers sharp edges - Long hair tied back - Use of acids in experiment Diagram 1) Weigh the cathode 2) Set up apparatus below 3) After a minute, remove the copper and shake off the excess copper sulphate solution....   [tags: GCSE Chemistry Coursework Investigation] 767 words
(2.2 pages)
FREE Essays [view]
Investigation to Identify the Formula of Hydrated Copper Sulphate - Investigation to Identify the Formula of Hydrated Copper Sulphate Aim: I plan to investigate the formula of Hydrated Copper Sulphate and, more importantly, what x stands for in the formula (CuSO4.xH2O). This will tell me how many molecules of water surround each molecule of Copper Sulphate. To do this I plan to work out the amount of water a set mass of Hydrated Copper Sulphate loses when it becomes anhydrous. I will work this out by measuring the difference in mass between the two states....   [tags: Papers] 1583 words
(4.5 pages)
FREE Essays [view]
The Method of Extracting Copper and Gold by Bacterial Leaching - The Method of Extracting Copper and Gold by Bacterial Leaching The methods of extracting gold and copper have significant differences and therefore require separate attention. Prior to leaching occurring, either a tailings pile must be built up upon a base of impermeable rock or a series of holes drilled into the ore, to provide access for the bacteriaα. [IMAGE] At process one the bacteria thiobacillus ferro-oxidans and thiobacillus thio-oxidans, naturally occurring bacteria that obtain the energy that they need to survive by oxidising Fe2+ and S2- ionsα, are added to the copper ore....   [tags: Papers] 987 words
(2.8 pages)
Better Essays [preview]
Investigating the Effect of Copper Sulphate on Amylase Activity - Investigating the Effect of Copper Sulphate on Amylase Activity Aim The aim of my experiment is to observe the affect on amylase when adding copper sulphate to a starch solution. Introduction Enzymes are that act as catalysts, in other words they increase the rate of chemical reactions. Consider the following general reaction between two substances, A and B, which react together to form a product, substance C: A + B = C In biological systems, this reaction might occur very slowly, or not at all, in the absence of an enzyme....   [tags: Papers] 3341 words
(9.5 pages)
FREE Essays [view]
The Unwavering Character of James Fenimore Copper's Deerslayer - The Unwavering Character of James Fenimore Copper's Deerslayer James Fenimore Copper presents Deerslayer as a man of integrity, virtue, and honor. He is a warrior who lives by his word. Even if the situation places his life in jeopardy, he refuses to abandon what he believes in and what he says he will do. Deerslayer’s greatest display of character and honor is seen when he refuses to compromise his standards even though it threatens his life. After saving Hist from the Hurons, Deerslayer was taken captive by them....   [tags: Character Analysis, Deerslayer] 325 words
(0.9 pages)
FREE Essays [view]
Lead and Copper Rule at the Federal and State Levels - ... Water systems are required to monitor the sites every six months. Public Notification Two public notification clauses exist in the LCR. First is the Lead Consumer Notice, according to 40 CFR 141.86(g), lead testing results must be sent to consumers of the water supply within 30 days regardless of whether the AL was exceeded. Second is the Consumer Confidence Report, 40 CFR 141.154 states that all CWSs must offer educational material about lead in drinking water to consumers regardless of lead levels detected in the water supply (USEPA, 2011)....   [tags: Environment ]
:: 1 Works Cited
834 words
(2.4 pages)
Unrated Essays [preview]
Investigating How the Current Affects The Mass Of Copper Collected At The Cathode - Investigating How the Current Affects The Mass Of Copper Collected At The Cathode Aim: The aim of this investigation is to find out how current affects the amount of copper formed at the cathode, when using copper sulphate solution and graphite electrodes. Pre-test Results: For my pre-test, I have gathered the following results: Current Volume of Copper Sulphate Time Mass of cathode before Mass of cathode after 20.2 mA 50ml3 3 minutes 3.25g 3.27g 0.1A 50ml3 3 minutes 3.11g 3.12g 0.2A 40ml3 4 minutes 3.12g 3.14g 0.4A 25ml3 5 minutes 3.14g 3.17g 0.6A 50ml3 5 minutes 3.17g 3.19g 1A 30ml3 4 minutes 3.21g 3.24g From the pre- test, I have decided: v Time: 5 minutes v Volume of Copper Sulphate Solution: 50 ml3 v Beaker size: 100ml3 v Range of Currents: 0.1A, 0.2A, 0.3A, 0.4A, 0.6A....   [tags: Papers] 2038 words
(5.8 pages)
FREE Essays [view]
Investigation of the Factor that Affects the Change in Temperature Between Iron and Copper Sulphate - Investigation of the Factor that Affects the Change in Temperature Between Iron and Copper Sulphate In this investigation I am going to investigate a factor that effects the change in temperature between copper sulphate solution and iron filings. The variable involved in this investigation are: · The volume of copper sulphate · The mass of iron filings added · Rise in temperature · Concentration of the copper sulphate In this in investigation my input variable that I am going to change will be the mass of iron filings that I will place into the copper sulphate solution to see how the change in mass effects the rise in temperature of the solution....   [tags: Papers] 2236 words
(6.4 pages)
FREE Essays [view]
Speciation and Origin of Particulate Copper in Runoff Water from a Mediterranean Vineyard Catchment - Speciation and Origin of Particulate Copper in Runoff Water from a Mediterranean Vineyard Catchment Fungicide treatments have led to large copper contents of the topsoils of most vineyards. This paper examines the contamination of surface waters by copper in a Mediterranean wine-growing catchment. Its aims were to characterise the forms of copper associated with suspended matter during a heavy autumn storm event and to identify which soils contribute the most to the copper exports. 1. Introduction Copper has been used to protect vines against fungus disease since the end o the eighteenth century ( affor-gue,1928)....   [tags: Papers] 4356 words
(12.4 pages)
Better Essays [preview]
The Factors that Affect the Temperature Change Between Copper Sulphate and Iron Filings - The Factors that Affect the Temperature Change Between Copper Sulphate and Iron Filings Aim The aim of this piece of coursework is toinvestigate the factors that affect the temperature change between Copper Sulphate and Iron filings. Affecting factors Ø The concentration of Copper Sulphate Solution (CuSO4) Ø The amount of Iron filings (Fe) used I have chosen to experiment using the 1st factor I will have to change the concentration of the Copper Sulphate Solution (CuSO4) Prediction I predict that the higher the concentration of CuSO4 the higher the concentration the higher the temperature rise....   [tags: Papers] 623 words
(1.8 pages)
FREE Essays [view]
The Effects of the Distance Between Two Plates in Copper Solution on the Current - The Effects of the Distance Between Two Plates in Copper Solution on the Current Introduction I am investigating the relationship between the distance between two metal plates in a copper sulphate solution and the effect it has on the electrical current across the two plates. Scientific Knowledge Resistance is the amount a substance resists the flow of charge flowing through it. How Resistant a substance is depends on 4 things: 1. The length of the wire- the longer the wire the bigger the resistance; if you double the length you double the resistance....   [tags: Papers] 1564 words
(4.5 pages)
FREE Essays [view]
Comparing the Solubility's of Copper Sulphate, Sodium Chloride and Potassium Nitrate - Comparing the Solubility's of Copper Sulphate, Sodium Chloride and Potassium Nitrate Comparing the solubility's of copper sulphate, sodium chloride and potassium nitrate Background Information Molecular solids (sugar) and ionic solids (salts) both dissolve in water. However, they both dissolve in different ways. The intermolecular forces holding molecules of sugar together are relatively weak so when sugar is placed in water these bonds are broken and individual C12H22O11 molecules are released into solution....   [tags: Papers] 968 words
(2.8 pages)
Unrated Essays [preview]
Investigating How Length and Width of Copper Wire Affect the Current of a Circuit - Investigating How Length and Width of Copper Wire Affect the Current of a Circuit Task: To investigate how length and width of copper wire affect on the current of a circuit. Prediction: In this experiment, the input variable will be changing the length of the copper wire used in the experiment, and also the SWG of the wire, which means the width of the wire. By changing this variable, the current the circuit will vary. With my knowledge in science and some research on the factors that affect a circuit's resistance....   [tags: Papers] 1172 words
(3.3 pages)
FREE Essays [view]
Determining the Effects of Copper Sulphate Concentration on the Germination of Broad Bean Seeds - Determining the Effects of Copper Sulphate Concentration on the Germination of Broad Bean Seeds Index ===== Page/s ------ Aim - 1 Introduction ------------ - 1-7 Null Hypothesis - 8 Alternative Hypothesis - 8 Variables - 8 Apparatus - 9 Method ------ - 9-10 Safety - 10 Fig 8: Table Showing Number of Cress Seeds That Germinated at Different Concentrations of Cu2+ Ions (mg/l) – Raw Data - 11 Calculating the Standard Deviation for Each Concentration of Cu2+ Ions (mg/l) – Raw Data - 12-16 Fig 9: Table Showing Standard Deviation of Number of Cress Seeds That Germinated at Different Concentrations of Cu2+ Ions (mg/l) – Raw Data - 17 Calculating the Standard Error for Each Concentration of Cu2+ Ions (mg/l) – Raw Data - 18-20 Calculating the Upper and Lower Limits (Error Bars) for Each Concentration of Cu2+ Ions (mg/l) – Raw Data - 21-23 Index ===== Page/s ------ Fig 10: Table Showing Standard Error and Upper and Lower Limits of Number of Cress Seeds That Germinated at Different Concentrations of Cu2+ Ions (mg/l) – Raw Data - 24 Calculating the Log Values of Concentrations of Cu2+ Ions (mg/l) – Raw Data - 25 Fig 11: Graph Showing Mean Number of Cress Seeds That Germinated at Different Concentrations of Cu2+ Ions (mg/l) with Upper and Lower Limits – Raw Data - 26 Fig 12: Table Showing Number of Cress Seeds That Germinated at Different Concentrations of Cu2+ Ions (mg/l) – Anomalous Data - 27 Calculating the Standard Deviation for Each Concentration of Cu2+ Ions (mg/l) – Anomalous Data - 28 Calculating the Standard Error for Each Concentration of Cu2+ Ions (mg/l) – Anomalous Data - 29 Calculating the Upper and Lower Limits (Error Bars) for Each Concentration of Cu2+ Ions (mg/l) – Anomalous Data - 30 Fig 13: Table Showing Standard Deviation of Number of Cress Seeds That Germinated at Different Concentrations of Cu2+ Ions (mg/l) – Anomalous Data - 31 Fig 14: Table Showing Standard Error and Upper and Lower Limits of Number of Cress Seeds That Germinated at Different Concentrations of Cu2+ Ions (mg/l) – Anomalous Data - 31 Index ===== Page/s ------ Fig 15: Graph Showing Mean Number of Cress Seeds That Germinated at Different Concentrations of Cu2+ Ions (mg/l) with Upper and Lower Limits – Anomalous Data - 32 Analysis -------- - 33 Conclusion - 33-35 Accept or Reject Null Hypothesis - 35 Sources of Error - 36 Reliability - 37 Further Experiments - 37 Appendix - 38-39 Aim === The aim of this experiment is to determine what effect an increase in copper sulphate concentration will have on the germination of broad bean seeds....   [tags: Papers] 5628 words
(16.1 pages)
FREE Essays [view]
To investigate the temperature change in a displacement reaction between Copper Sulphate Solution and Zinc Powder - To investigate the temperature change in a displacement reaction between Copper Sulphate Solution and Zinc Powder Preliminary Experiment: Correlating Magnesium Powder and Copper Sulphate Solution ========================================================= I will mix 4cm of Magnesium ribbon and 50cm³ of Copper Sulphate Solution into a polystyrene cup until I find a reaction. =============================================================== Prediction ========== The magnesium will displace the copper and the temperature will rise....   [tags: GCSE Chemistry Coursework Investigation] 1074 words
(3.1 pages)
FREE Essays [view]
Investigating the Temperature Change in a Displacement Reaction between Copper Sulphate Solution and Zinc Powder - Investigating the Temperature Change in a Displacement Reaction between Copper Sulphate Solution and Zinc Powder I will mix 4cm of Magnesium ribbon and 50cm³ of Copper Sulphate Solution into a polystyrene cup until I find a reaction. The magnesium will displace the copper and the temperature will rise. Magnesium + Copper Sulphate → Copper + Magnesium ------------------------------------------------ Mg + CuSO4 → Cu + MgSO4 Hypothesis ========== The Magnesium will displace the Copper and rise in temperature because it is more reactive and it is an exothermic reaction....   [tags: Papers] 1005 words
(2.9 pages)
Unrated Essays [preview]
Chemistry Experiment - Chemistry Experiment How does the change in the electric current used in the electrolysis of copper sulphate solution affect the mass of copper deposited on the copper electrodes. Aim --- The aim of this experiment is to find out whether the mass of copper deposited on copper electrodes during the electrolysis of copper sulphate solution changes when the current used to electrolyse the solution is increased. Hypothesis ---------- I predict that if the current used to electrolyse the copper sulphate solution is increased, then the mass of copper deposited on the copper cathode will increase....   [tags: Papers] 2189 words
(6.3 pages)
Unrated Essays [preview]
The Sequence Of Chemical Reactions - The Sequence of Chemical Reactions INTRODUCTION This experiment was to recover the most amount of copper after it is subjected to a sequence of reactions. The copper is originally in solid form, but the reactions will turn it into free Cu+2 ions floating in solution. The ions will then be regrouped to form solid copper once again. During this process, however, some of the Cu+2 ions may be lost. The copper will subjected to changes in pH and heat. These steps were responsible for the breakdown and reconstruction of the copper....   [tags: essays research papers] 634 words
(1.8 pages)
FREE Essays [view]
An Investigation into the Displacement of Metals - An Investigation into the Displacement of Metals Aim: I am investigating how the mass of iron fillings affects the mass of copper displaced from copper sulphate. Apparatus: Iron filings, copper sulphate, beaker, stirring rod, goggles, scale, filter funnel, filter paper, evaporation dish. The variable that I will be changing is the mass of Iron Filings (in grams) added to the Copper Sulphate. Plan: 1. Collect all appropriate apparatus and then set up. 2. Carefully pour 20cm³ of Copper Sulphate into a beaker....   [tags: Papers] 926 words
(2.6 pages)
FREE Essays [view]
The Impact of International Relations between China and Zambia - ... (before it was privatized) is Zambia, and Zambia is Zambia Consolidated Copper Mines Ltd” (Craig 2001). The entity of Zambia, therefore, is the copper industry. If the copper industry falters, then this direct relationship consequently causes Zambian profits to also falter. As with any other influential foreign involvement, turmoil among the locals inevitably emerges. The tensions rising from the poor working conditions imposed by the Chinese in the copper mines, in relation to layoffs, and inequities, sparked further opposition politically....   [tags: International Government ]
:: 5 Works Cited
1833 words
(5.2 pages)
Powerful Essays [preview]
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)
Unrated Essays [preview]
Electrolysis Investigation - Electrolysis Investigation Aim To investigate how voltage affects the amount of a copper (Cu) deposited during electrolysis of copper sulphate solution (CuSO4). Variables ========= TEMPERATURE - Approximately 20° centigrade.The higher the temperature, the faster the ions move through the solution. Thus, more copper is deposited in the given time period. ELECTROLYTE (CONCENTRATION) - 100g per litre. The denser the solution, the slower the reaction. The slower the reaction, the less copper is deposited in the given time period....   [tags: Papers] 855 words
(2.4 pages)
FREE Essays [view]
Bacterial Leaching - Bacterial Leaching Water running out of copper mines contains dissolved copper ions that have been leached from copper minerals by bacteria. Some mines make use of bacterial leaching as a means of extracting copper from low-grade ore and tailings from conventional mining. The bacteria thiobacillus ferro-oxidants and thiobacillus thio-oxidants get the energy they need to survive by oxidising Fe2+ ions and S2- ions. The S2- ions are present in insoluble copper minerals, zinc and lead....   [tags: Papers] 643 words
(1.8 pages)
Unrated Essays [preview]
the wilsons disease - The Wilson’s Disease The Wilson’s disease is a genetic disorder of the thirteenth chromosome. This disease is an inherited disease and it is mostly likely to be in all of the offspring if a parent had it. It is the unnecessary increase of copper in the liver and brain. This is cause by a defect in the transport of copper. Wilson’s disease is a rare autosomal recessive disorder of the copper transport resulting in the copper buildup. It is also known as Hepatolenticular Degeneration as the scientific name....   [tags: essays research papers] 427 words
(1.2 pages)
FREE Essays [view]
lab - Intro In Lab #5 five we will be exploring the cycle of copper through many chemical reactions. What we are going to do is take a piece of copper metal put it through a series of reactions that change it¡¦s state of matter and chemical formula, but in the end, we will return it to it¡¦s normal solid state. The idea of this lab is to try to recover as close to 100% of the copper we started with. Theoretically, this is possible, but for inexperienced college students, retrieving 100% of the copper metal is near impossible....   [tags: essays research papers] 618 words
(1.8 pages)
FREE Essays [view]
Extraction by Bacteria Leaching - Extraction by Bacteria Leaching Copper and Gold can be extracted from their ores by using bacteria leaching. A long time ago, engineers investigating the possibility of reopening the Roman workings noticed a blue-green liquid running from the mountains of excavated rock. When the fluid ran across old iron implements, it left a brown film. When scraped off, the film was pure copper. In 1947, US microbiologists discovered that the transformation was in fact the work of microorganisms....   [tags: Papers] 860 words
(2.5 pages)
Better Essays [preview]
Electrolysis - Electrolysis How is the amount of copper deposited affected by the voltage. Aim The aim of this experiment is to find out what effect the change in voltage has upon the amount of copper deposited in 5 minutes. The voltages I will be using are 2, 4, 6, 8, 10 and 12volts; I will use these voltages because they are the only ones available on the power pack. I am doing the experiment for 5 minutes because it is enough time to get a result and it is short enough for doing 6 voltages in one lesson....   [tags: Papers] 593 words
(1.7 pages)
FREE Essays [view]
Rates Of Reaction Investigation - Rates Of Reaction Investigation Plan: This experiment is planned to investigate the rate of reaction when mixing Copper sulphate (CuSO4) with Zinc powder (Zn). My plan is to see what happens before, during and after the reaction takes place. I will need the following equipment to carry out this investigation: Ø A 50ml marked measuring tube Ø A digital precision scale Ø 600ml of copper sulphate Ø A digital thermometer Ø A pot of Zinc powder Ø A sandpaper (to sand the Copper sulphate off the thermometer) Ø A pen and a paper (to record results.) Ø A beaker (to mix the elements) Ø A stirring stick For the first preliminary results chart, the variable will be the amount of Zinc powder but the copper sulphate solution will be 30 ml....   [tags: Papers] 847 words
(2.4 pages)
FREE Essays [view]
Investigating Electrolysis - Investigating Electrolysis INTRODUCTION: In this experiment I will be investigating how the amount of copper affects the mass of the cathode. I will do this experiment twice so that I have an average of my results so that they are accurate. I have already done my preliminary work and from it, I have noticed that I will have to make some changes with the method of my experiment. AIM: In this experiment, I intend to find out how much copper in the solution affects the mass of the cathode....   [tags: Papers] 4217 words
(12 pages)
FREE Essays [view]
Wilson Disease - ... (Medici & Rossaro, 2006) Wilson disease does not play favorites. It affects about 1 in 30,000 of the world’s population, and includes several different ethnic groups. (Tavill, n.d.) Dr. Rahil Shah (2011) notes that, “In the United States, the carrier frequency is 1 per 90 individuals.” In children and teens 10-13 years old, Wilson disease is evident as liver disease. In young adults 19-20 years old, it appears as a neuropsychiatric illness. The disease rarely affects children younger than five....   [tags: Health, Homeostatis] 1741 words
(5 pages)
FREE Essays [view]
Finding the Change in the Mass of the Electrodes During Electrolysis - Finding the Change in the Mass of the Electrodes During Electrolysis Safety: Before carrying out he investigation we had to take safety into consideration so we wore goggles to protect our eyes from any harmful chemical and aprons to protect our clothes from anything that may get spilt. Equipment: 1x 250 ml glass beaker 1x power pack 1x ammeter 4x wires Copper Sulphate solution 2x Copper electrons 1x Variable resistor Weighing scales 1x stop clock Propane [IMAGE] Method: Set up the apparatus as shown above in the diagram....   [tags: Papers] 505 words
(1.4 pages)
FREE Essays [view]
Wilsons Disease - http://www.wilsonsdisease.org/ Wilson's Disease is a genetic disorder that is fatal unless detected and treated before serious illness develops from copper poisoning. Wilson's Disease affects one in thirty thousand people world wide. The genetic defect causes excessive copper accumulation. Small amounts of copper are essential as vitamins. Copper is present in most foods, and most people get much more than they need. Healthy people excrete copper they don't need, but Wilson's Disease patients cannot....   [tags: essays research papers] 1789 words
(5.1 pages)
Better Essays [preview]
Releasing Energy through Reactions in Batteries - Releasing Energy through Reactions in Batteries Reactions that involve a change in oxidation number are called oxidation-reduction reactions. An element is oxidized if the oxidation number has become more positive in value. The term reduction describes the opposite process, in which the oxidation number becomes more negative in value. In the same equation, for example, the hydrogen is reduced. The oxidation number has changed from +1 to 0. If everything is counted through the entire equation, oxidation and reduction are equal and balance to 0....   [tags: Papers] 1838 words
(5.3 pages)
Better Essays [preview]
Electrolysis Investigation - Electrolysis Investigation To monitor the quantity of copper (Cu) metal deposited during the electrolysis of copper sulphate solution. Electrolysis is the chemical decomposition of an ionic compound by the passing through it of an electric current. The ionic compound must either be in the molten state or in solution form. This is because the ions need to be mobile since it is the movement of ions that is needed for electrolysis to occur. Electrodes are rods or in this case plates of a conducting material by which current enters or leaves the ionic compound called the electrolyte....   [tags: Papers] 1837 words
(5.2 pages)
FREE Essays [view]
Electroplating Experiment - Electroplating Experiment Aim To find the amount copper gains or loses on the electrodes using different amounts of current each time during electrolysis. How the changing of current affects the electroplating of copper. Introduction Electroplating is generally carried out in order to improve the appearance or corrosion resistance of the surface of a metal by electrodepositing a thin layer of metal ion on it. The metal substrate to be coated is made by the cathode in an electrolytic cell....   [tags: Papers] 2202 words
(6.3 pages)
FREE Essays [view]
Chemestry Assessed Practical - Chemestry Assessed Practical Variables: The variables for this practical are: 1. The metal that it used- magnesium, copper or iron. 2. The amount of metal that is used- any amount as long as it is divisible by 0.5 grams. 3. The concentration of the solution of the solution- molarity 0.1M or 0.5M. I am going to change the amount of metal. Fair Test: To make this a fair test I must keep everything constant except the variable (the amount of metal). But even the variable must be changed at a consistent rate (going up in 0.5g)....   [tags: Papers] 526 words
(1.5 pages)
FREE Essays [view]
The Effect of Catalyst an the Rate Of Reaction - The Effect of Catalyst an the Rate Of Reaction Chemistry Coursework Does The Number of Drops of Catalyst Effect The Rate Of Reaction Candidate Name: Ben Dodds Candidate Number: 7158 School: Oundle School Completion Date: Introduction We are studying the reaction between zinc and sulphuric acid, the reaction is catalysed by copper sulphate and this experiment is to test whether the amount of drops effect the rate of reaction. Word Equation Zinc(s) + Sulphuric acid(aq) à Hydrogen(g) + Zinc Sulphate(aq) Symbol Equation Zn + H2SO4 à H + ZnSO4 This reaction is catalysed by Copper sulphate (CuSO4) Ionic Equation - Cancel Spectator ion (SO42-) Zn + 2H+ à Zn2+ + H2 For this reaction to work there must be hard collisions between the zinc and the hydrogen ions (acidity ion) from the acid, The faster the harder and the more often the collisions happen so I predict the more catalyst the faster the reaction....   [tags: GCSE Chemistry Coursework Investigation] 1447 words
(4.1 pages)
Better Essays [preview]
The Reactivity of Metals - The Reactivity of Metals Planning: Aim: to put these 5 metals in the order of reactivity. * Iron * Copper * Magnesium * Lead * Zinc Scientific Information: A displacement reaction is where a more reactive element reacts with a compound and pushes out a less reactive element. E.g. magnesium will react with iron sulphate to push the iron out and form magnesium sulphate. I have carried out preliminary experiments and they have shown me that the reactivity of metals and elements can be deciphered from the table of elements, this will tell you how the reactive a metal or element is by simply looking what group it is in and in which period....   [tags: Papers] 1339 words
(3.8 pages)
FREE Essays [view]
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)
Unrated Essays [preview]
Electrolysis Experiment - Electrolysis Experiment Aim: To find out how current affects the rate of electrolysis. Pre-test: Pre-test Apparatus: 1. Power Pack 2. Stop watch 3. 3 wires 4. Amp meter 5. A piece of Card 6. stop watch 7. Top pan balance Pre-test Method: Text Box: 1. Check to see if all the apparatus work by forming a small circuit with a bulb 2. Collect apparatus and set them out like the diagram below. Ensure that the positive wire leads to the anode and the negative leads to the cathode....   [tags: Papers] 1667 words
(4.8 pages)
FREE Essays [view]
Evaluation of the Fractal Dimension of a Crystal - Evaluation of the Fractal Dimension of a Crystal Abstract The purpose of this experiment was to determine the effects of voltage and molarity changes on the fractal dimension of a Cu crystal formed by the re-dox reaction between Cu and CuSO4. Using the introductory information obtained from research, the fractal geometry of the Cu crystals was determined for each set of parameters. Through the analysis of data, it was determined that the fractal dimension is directly related to the voltage....   [tags: Chemistry Chemical Papers]
:: 6 Sources Cited
1956 words
(5.6 pages)
FREE Essays [view]
Solenoid - Summary of Investigation An investigation was carried out to find out the relationship between the force created in a wire (or solenoid) when current flowed through it and the force from gravity. This was investigated by connecting a solenoid up to a variable power pack and then placing a light ring of either copper or aluminum around the solenoid. When the current flows through the solenoid, a magnetic force created from the solenoid should make the ring 'jump' up or levitate. When carrying out the experiment, the assumption was made that there will be some movement from the ring when current starts flowing through the solenoid and thus a magnetic field will be present....   [tags: essays research papers] 1226 words
(3.5 pages)
FREE Essays [view]
Insulating Materials - Insulating Materials Introduction In this investigation I aim to find out which materials are the best insulators. This practical investigation involves investigating what kinds of materials are best at keeping water in a copper beaker warm. A material that prevents this heat loss is called an insulator. Insulators have to prevent three types of heat loss: · Conduction · Convection · Radiation Conduction - This is where heat energy passes through the walls of the copper beaker by making the particles of the beaker vibrate which makes the particles next to them vibrate causing the heat to pass through the walls of the beaker to the surroundings....   [tags: Papers] 1632 words
(4.7 pages)
FREE Essays [view]
Rocks and the Earth - Rocks and the Earth There are 3 main types of rock . These are sedimentary , metamorphic and igneous . Igneous rocks are formed by molten lava escaping from the mantle and cooling down to form solid , crystalline rock. The faster the new rock cools the smaller the crystals in the rock are. Eg Granite Sedimentary rocks are made when small chippings of rock accumulate on the seabed and are crushed together over thousands of years. These chippings are worn from rocks by wind, rain and ice , this is called erosion or weathering....   [tags: Papers] 728 words
(2.1 pages)
FREE Essays [view]
Egg Albumen Experiment - Egg Albumen Experiment The purpose of this investigation is to establish which is the lowest concentration of Copper (II) Sulphate solution that will denature a sample of egg albumen (egg white) at room temperature. The base of the reaction is the globular protein (albumen) being denatured by a heavy metal (Copper (II)), the copper (II) reacts with the NH3 group causing it to denature, this means the proteins' secondary and tertiary structures are being altered and refolding into different shapes, this resulting in a change from the substance being clear to turning opaque.[1] As the concentration of the denaturants increases more folding and changing of shape will occur and therefore more denaturing will occur and at a faster rate....   [tags: Papers] 1251 words
(3.6 pages)
FREE Essays [view]
Rise and Fall of the Magan Civilization - ... 1.Copper smelting In the past , There was a widespread thought that the Megan’s copper which was exported to Mesopotamia is located in Iran, but analysis of the Chemical composition of copper samples ,found in the Mesopotamia have proved that their source was Oman peninsula (Berthoud and Clezuiou,1983,p:239 v6 p2). Moreover, investigations and archaeological studies over last the years have also indicated that the of Oman mountains range contain a large proportion of copper ore which exists in Ophiolites rocks, extending from Musandam in the north to Masirah island in the south....   [tags: World History] 2183 words
(6.2 pages)
Better Essays [preview]
Printed Circuit Boards - Printed Circuit Boards Printed circuit boards were invented in the1930's and are used in a variety of electronic circuits. The uses range from simple one-transistor amplifiers to super computers. Printed circuit boards are a large part of technology in the modern world. They can be found in products such as cars, toys, TV's, computers, telephones, oven etc. In my report I am going to itemise and explain the process involved in producing a printed circuit board with the characteristics below....   [tags: Papers] 849 words
(2.4 pages)
FREE Essays [view]
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
(2.1 pages)
Unrated Essays [preview]
Investigationg of Chemical and Physical Changes - Investigationg of Chemical and Physical Changes Why I am conducting this experiment. In order to learn how to recognize chemical and physical changes, I have to carry out this experiment to see different chemical and physical changes of different substance. How can we recognize physical changes and chemical changes. ----------------------------------------------------------- A chemical change involves a creation of a new substance, but a physical change doesn’t involve any creation of any substance....   [tags: Papers] 1153 words
(3.3 pages)
FREE Essays [view]
Investigation of Positively and Negatively Charged Electrons - Investigation of Positively and Negatively Charged Electrons To try and find out if positively charged electrons deposit to the negatively charged electrons. This means, the electrons in the cathode attract electrons from the anode so they move towards the cathode from the anode. Prediction: I think that as the electrons move from the anode to the cathode, the mass of the anode to the cathode, the mass of the anode decreases whilst the mass of the cathode increases. I can support the point I've made above by faradays law which is: Faraday's Second Law of electrolysis states that: "The mass of an element deposited by one Faraday of electricity is equal to the atomic mass in grams of the element divided by the number of electrons required to discharge one ion of the element." Hypothesis: The mass of the anode should decrease whilst the mass of the cathode should increase because positively charged electrons get attracted to the negatively charged electrons....   [tags: Papers] 558 words
(1.6 pages)
FREE Essays [view]
Platinum (Pt) analogues - ... Among non-Pt compounds, copper complexes are potentially attractive as anticancer agents. Actually, since many years a lot of researches have actively investigated copper compounds based on the assumption proposal that endogenous metals may be less toxic [5]. The diverse nature of cancer is reflected in the wide array of candidates designed as interventions in the biological pathways leading to diseases. As a distinct series of cellular pathways, apoptosis offers unique target for chemotherapeutic interventions [11]....   [tags: Health, Diseases, Tumors, Cancer] 561 words
(1.6 pages)
FREE Essays [view]
Classes of Chemical Reactions - Classes of Chemical Reactions Whenever a reaction takes place, energy is changed as well when the substances react chemically. Scientists have taken these changes in energy and generalized them. Scientists can take these generalizations and discover more about the nature and tendencies of matter. In this lab, the purpose was to perform seven reactions, write down their equations, and identify the type of reaction. In this lab report, several methods of displaying this information will be applied....   [tags: essays research papers] 979 words
(2.8 pages)
FREE Essays [view]
Determining the Effect of Different Sugar Concentrations on Benedict's Solution - Determining the Effect of Different Sugar Concentrations on Benedict's Solution PLANNING: Hypothesis and prediction: My hypothesis is that the sugar solution with the highest concentration will turn the precipitate the darkest colour. This will be the 10% sugar solution. This is because the more amount of sugar it contains the more it will reduce the Copper. It will be a much darker precipitate compared to the other two. Background theory: Benedict's solution is an aqueous solution of Copper (II) Sulphate, Sodium carbonate and Sodium citrate....   [tags: Papers] 1923 words
(5.5 pages)
FREE Essays [view]
Electrolysis - Electrolysis Aim: The aim of the investigation is to find the amount of copper gained or lost on the electrodes using a different amounts of current each time during electrolysis. How does the changing of the current and surrounding temperature effect the electrodes. Variables: Throughout the experiment I will change the amount of current used. I will measure the weight of the electrodes after each test. To make the test fair I will be keeping the same electrodes throughout the experiment....   [tags: Papers] 969 words
(2.8 pages)
FREE Essays [view]
Investigating for Cations and Anions - Investigating for Cations and Anions In this experiment I will investigate what cations and anions are present in various compounds. This will include carrying out a qualitative analysis, because I need to find out what type of cations and anions are there and not quantitative analysis, which includes finding out how much of each element there is. Safety Points: · Wear glasses · Wear gloves · Do not mix more than two solutions · Only mix the solutions listed by the teacher · Handle the chemicals with extreme care · Put the chemical solutions into a test-tube which is resting on a test-tube holder · Follow school lab safety procedures....   [tags: Papers] 768 words
(2.2 pages)
FREE Essays [view]
Investigating the Thermal Decomposition Of Metal Carbonates - Investigating the Thermal Decomposition Of Metal Carbonates Aim: To investigate a range of metal carbonates and see if they thermally decompose. Thermal Decomposition INVESTIGATION [IMAGE] ------- Written By Tauqir Sharif ------------------------ Research: When a metal is thermally decomposed the bond between the metal and its carbonate (carbon and oxygen) is removed and the carbonate is released as carbon dioxide. Metal Carbonate = Metal Oxide + Carbon Dioxide Malachite is an ore of copper....   [tags: Papers] 2469 words
(7.1 pages)
FREE Essays [view]
Investigating the Factors Which Will Affect the Stretching of a Helical Spring when Put Under a Load. - Investigating the Factors Which Will Affect the Stretching of a Helical Spring when Put Under a Load. Aim: To investigate and analyse the factors which will effect the stretching of a Helical Spring when put under a load of weights. ================================================================= Theory: Things, which might affect this, are: · Downward force applied to the spring. · Spring material. · Length of spring. · No. of coils in spring. · Diameter of spring material. · Cross sectional area of spring....   [tags: Papers] 819 words
(2.3 pages)
FREE Essays [view]
Chemistry Experiment on the Reaction of Different Metals When Exposed to Acid - Before the experiment, I wrote down a prediction. My hypothesis towards the experiment was that magnesium would have a bigger reaction with the acids. The reactivity of an element depends on its ability to gain or loose electrons which are used for bonding. The more reactive an element, the more easily it will combine with others. From this information, I know that magnesium has a stronger ability to gain or loose electrons which makes the metal more reactive. I gathered together four different metals and acid compounds which all reacted with one of the elements in the past, for example, Iron Sulphate (FeSO4) contain iron....   [tags: chemistry lab] 856 words
(2.4 pages)
Better Essays [preview]
case analysis - Case Analysis For the past two months our sales on copper fitting has almost doubled due to the increasing demand from the market and the competitors¡¦ unsuccessful selling promotion. However, the problem rises from the overwhelming demand. Many back orders are just piled up on the warehouse manager¡¦s desk, and some of the customers lost their patience with us. What we really need right now is to limit or reduce the abnormal demand from the customers by raising the price of our products, but to gain a reputation from our customers, we should consider completing all the backorders with a original price....   [tags: essays research papers] 487 words
(1.4 pages)
FREE Essays [view]
Which two metals combined together give the higher voltage when reacting with acid - Which two metals combined together give the higher voltage when reacting with acid Introduction In this investigation we will find out which two metals combined together give the higher voltage when reacting with acid. The metals used will be: · Aluminium · Zinc · Iron · Tin · Lead · Nickel · Copper To make a prediction on what metals will be the ones that give the highest voltage when combined together you need to find out if the position in which the metals are at in the reactivity series would make a difference, and if it does, how....   [tags: GCSE Chemistry Coursework Investigation] 1196 words
(3.4 pages)
FREE Essays [view]
Electrochemistry - ELECTROCHEMICAL CELLS Purpose: In this experiment, several different half-cells will be prepared and connected to find the voltages generated. Also, the concentration will be change in one of the solutions to see how this affects the cell potential. Thirdly, the electrical potential of a cell containing silver and silver chloride will be measured. Lastly, a cell containing copper (II) and ammonia will be constructed. The potential and the Nernst equation will be used to calculate the formation constant of the tetraamminecopper (II) complex ion....   [tags: essays research papers] 764 words
(2.2 pages)
FREE Essays [view]
Impact on the Environment of Electrical and Electronics Products - Impact on the Environment of Electrical and Electronics Products Introduction Electrical and Electronics products are now commonly found all around the world and the number is on the rise. The amount of such products that is being disposed is also on the rise. There is a concern on the environmental effect by such products that is being disposed as well as when it is being manufacturer. This is because most of these products contain either harmful substance or non bio-degradable materials which cause an impact on the environment....   [tags: essays research papers] 5288 words
(15.1 pages)
Powerful Essays [preview]


Your search returned over 400 essays for "copper". To narrow your search results, please add more search terms to your query.
[1] [2] [3] [4] [5] [Next >>]



Copyright © 2000-2011 123HelpMe.com. All rights reserved. Terms of Service