Properties of Water Water is essential for life as we know it on earth. It is used by plants and animals for basic biological processes which would be impossible without the use of water. The origin of all life can be traced back to the water in the Earth's precambrien seas. Water is also the universal solvent. It reacts with more elements and compounds than any other substance known to man. Water is a polar molecule made up of on atom of hydrogen and two atoms of oxygen. It is attracted to itself
Platinum It's chemical properties. What is it used for? Platinum Symbol: Pt Atomic number: 78 Atomic mass: 195,084 Group 10 - transition metal It was discovered by Julius Scaliger in 1735. Structure Number of electrons: 78 Number of protons: 78 Number of neutrons: 117 Electronic configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d9 6s1 Physical Properties 1) It is a solid metal (at room temperature) 2) Color: steel-gray to dark gray, shiny 3) malleable 4) ductile
Every chemical element or compound have specific properties that make them different than the other. However, these properties help us to understand every element or compound in which they can be used and how we can deal with them. These properties can be chemical properties which are defined as "that property must lead to a change in the substances ' chemical structure", such as heat of combustion and flammability ("Physical and Chemical…"). Also, these properties can be physical properties which
1. Explain with references to chemical properties, why aluminium – the most common metallic element on our planet – was not extracted and used until the 19th century whereas gold, a much rarer element was one of the first metals used. (10 marks) Gold was discovered around 6000 BC; it was first discovered in its Natural state un-combined. Gold can be found in the earth’s crust in two different types of deposits: Lode deposits which are deposits in solid rock and placer deposits which are found in
will float on liquid water. If not for this, great bodies of water would freeze from the bottom up without the insulation of a top layer of ice and all life in the water would die. The water molecule is a very small one but because of its unique properties it behaves like a larger one. The bonds between water molecules are so strong that water resists changes in its state (Solid, liquid, gas); thus water has a higher melting point and a higher boiling point than another molecule of similar size
2.4.1 Magnesium Properties Figure 2.7 shows the properties of magnesium based on physical, mechanical and chemical properties. Magnesium element is strong, ductile and light- weight metal. It is malleable when heated and react slowly in cold water. The chemical properties are it is highly flammable metal and high chemical reactivity (Boccaccini & Gough, 2007). Figure 2.7: The characteristic of magnesium Table 2.4: Physical properties of pure magnesium (International Magnesium Association, 1943)
Physical and Chemical Properties of Water Physical Water is the most cohesive non-metallic liquid. Hydrogen has a positive charge and Oxygen has a negative charge, so they attract each other and form a bond. Capillary action happens because of waters cohesiveness and stickiness. Capillary action occurs when the adhesion of water to the sides of the vessel it is in are stronger than the forces between the molecules. Another physical property of water is its color, water is actually not colorless,
I. Abstract This paper will provide a detailed discussion about iron metal. The chemical, physical and mechanical properties of iron metal will be discussed. Additionally, the occurrence and major applications of the metal will also be provided. This is intended to provide an understanding of the iron metal and the chemistry around it. The geometry of coordination together with the different oxidation states will be included in the discussion. It should be noted that iron is one of the few metals
hydrolysis of ethylene oxide (EO), which itself is obtained via ethylene oxidation. Molecular structure: (Sources: Wikipedia, American Chemistry Council, Shel) 1.2 PHYSICAL AND CHEMICAL PROPERTIES The physical and chemical properties of ethylene glycol are listed in table below. Table 1.2 Physical and chemical properties
element with many diverse health effects. Scientists have developed products, and processes that still continue to used lead. Lead is an extremely important and influential element in our daily lives. Lead has many different physical and chemical properties. Being a solid at room temperature, lead is the heaviest member of the carbon family (1). Lead can by physically described as a soft metallic gray color, and tends to be formed naturally with jagged edges. It is also a very ductile and malleable
supply is dwindling, property law and the concept of legal personhood is being applied to the situation in order to create a solution to preserve the water quality and supply. Economists like Garrett Hardin and Elinor Ostrom have also shared their ideas in relation to issue of water conservation. All of this, combined with the legal cases that have already been argued in relation to water, create various viewpoints and solutions to the issue of water pollution and supply. Property law has three main
Aspirin is one of the most commonly used drugs in history. Aspirin is used for many different reasons. People use Aspirin for its cardiovascular blood thinning properties, for its pain relieving properties and for it antipyretic properties, to name a few. Most people don’t know what Aspirin is, but only what it does for their particular needs. I will attempt to describe some different aspects of Aspirin and Aspirin overdose. I will give a brief description of what Aspirin is, chemically speaking
for images or letters scratched, scrawled, painted or marked in any manner on property (jasbal,2011); in fact, there are many types of graffiti, but the most widely recognized form of it is tagging, which involves a person using wide-tip marker pens, spray-paint or other implement to create a tag or nickname that will identify them to other graffiti taggers; graffiti can be found anywhere, on both public and private property and in trains, buses, vehicles, statues, park benches, electricity poles, billboards
inspections. A roof inspection can tackle issues, or perhaps be employed as a completely preventative measure for the peace of mind that the roof is working, and shielding the residence as designed. The Positives Of Roof Inspections Regardless of whether a property owner possesses an older roof, or one that has been recently installed, a roof inspection is advantageous towards the ongoing and maximum overall performance of the most significant component of one's house. You'll often
Nando’s stole my intellectual property - artist (Article 1) Summary of the article: Nando’s is accused of supposedly using an artist’s image without permission. Anthony Bila (photographer) posted on Facebook that Nando’s used his image, although he wasn’t sure if it was a copy right violation as Nando’s changed the original photo, he tried contacting Nando's but got no response. An attorney has stated that if the artist’s image has been used, they must pay him or it is illegal. Nando’s response about
separately. And by using these observations, we could also identify an unknown. We also would tests the ions of SO42-, CO32-, Cl-, and I-, that also enable each to be identified separately, and to be use to identify the unknown. Safety: Chemicals include toxic. Remember to wash hands after the experiment. Procedure Summary; Part I - Qualitative Analysis of Group 2 Elements We first mix 0.02M K2CrO4 with each Mg(NO3)2, Ca(NO3)2, Sr(NO3)2 and Ba(NO3)2 together. Secondly, we mix 0
warriors and nobility. The Aztecs used cacao beans to make a hot, frothy and bitter beverage called chocolatl. Chocolatl was a sacred concoction that was associated with fertility and wisdom. It was also thought to have stimulating and restorative properties. The bitter drink was first introduced to Europe in 1528. However, it was not until 1876 that milk, cocoa powder and cocoa butter were combined to form what we now know as chocolate (1). Today, production and consumption of chocolate is a global
carefully clean up spilled chemicals. Some materials can spontaneously combust when mixed (this is especially true of nitrates and chlorates). For the same reason, use separate instruments (plastic spoons, mixing cups, etc) for different chemicals. Label your instruments so that you know what materials they have been in contact with. 3) Mix materials outdoors. Chemical explosives contain their own internal source of oxygen, and cannot be smothered. If you start a chemical fire indoors, it can be nearly
Contrasting Rich and Poor in Grapes of Wrath One of the ironies of Steinbeck’s novel, The Grapes of Wrath was that, as Ma Joad said, "If your in trouble or hurt or need -- go to poor people. They're the only ones that'll help -- the only ones."(pg 335) The irony is that if you need something you have to go to the people who have nothing. There are many examples of this in the book. The first example of this is at the truck station in chapter 15 when the restaurant owner and waitress give the family
Property in Second Treatise of Civil Government and Robinson Crusoe Both John Locke's Second Treatise of Civil Government and Daniel Defoe's Robinson Crusoe deal with the question of property. In these two texts, the following questions arise: when does common property become an individual's property; and what factors make the appropriation of property justifiable or not? These questions may be answered by looking at each author's political views, followed by how they are incorporated in their