24th‚ 2008 Geology MW 7:45 Extra Credit Diamonds are a Girl’s Best Friend A diamond is considered to be one of the most precious and rare stones on earth. These stones “are rare for three reasons: they form deep within the Earth in very localized places beneath continents‚ an extremely unusual kind of volcanic activity is needed to bring [diamonds] to the surface‚ and only about 20 per cent of them are gem quality” (Fleet‚ Hart‚ Wall 23). Not all diamonds are good enough to sell for jewelry purposes
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Chemical Reactions What is a Chemical Reaction? Types of Chemical Reactions Redox Reactions Nonredox Reactions Classifying Reactions What is a Chemical Reaction? A chemical reaction is a process in which the identity of at least one substance changes. A chemical equation represents the total chemical change that occurs in a chemical reaction using symbols and chemical formulas for the substances involved. Reactants are the substances that are changed and products are the substances that are
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Soren Chemicals 1. What is the addressable market size for Coracle? Is the first year goal of $1.5 million sales reasonable? (10 points) 2. Why is Soren struggling to sell Coracle? (10 points) 3. What is the highest price Soren can set for Coracle? (7 points) 4. What action plan do you recommend for Coracle? (13 points) Q1. Coracle is one of the clarifiers developed and produced by Soren Chemicals targeting residential pools which have smaller size than commercial pools and water
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CHEMISTRY TOPIC 11 CHEMICAL CALCULATIONS CHEMICAL CALCULATIONS INTRODUCTION The first part of this ‘Chemical Calculations’ topic will help us to work out QUANTITIES involved in a reaction; For example‚ a manufacturer might want to know‚ How much ammonia will I produce from 20 tonnes of nitrogen in the Haber Process? To do these calculations you will need to be familiar with the term Ar (relative atomic mass)‚ Mr‚ Molar mass and Mole. Relative Atomic
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Chemical Periodicity Gorospe‚ Jheremy Alden B. ____________________________________________________________________________________ ABSTRACT The experiment Chemical Periodicity was demonstrated by using different samples of Group IA‚ Group IIA and Group IVA elements. We placed each of the samples in each test tubes and the physical state‚ color‚ and appearance was identified. We determined the solubility of the elements by using distilled water. We used red and blue litmus paper for the Group
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What are the differences between diamond in terms of structure and property? Diamond Diamond is Transparent and possesses shiny appearance. Diamond is very hard. Diamond is an excellent electrical insulator. Diamond is the ultimate abrasive. Diamond crystallizes in the Isometric system. A diamond is one giant molecule of carbon atoms. Diamond Diamond is Transparent and possesses shiny appearance. Diamond is very hard. Diamond is an excellent electrical insulator. Diamond is the ultimate abrasive
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Harmful Chemicals in our Environment Over the past century humans have introduced a large number of chemical substances into the environment. Some are the waste from industrial and agricultural processes. Some have been designed as structural materials and others have been designed to perform various functions such as healing the sick or killing pests and weeds. Obviously some chemicals are useful but many are toxic and their harm to the environment and our health far outweighs their benefit to
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Chemical Bonding Lab Chemical compounds are combinations of atoms held together by chemical bonds. These chemical bonds are of two basic types—ionic and covalent. Ionic bonds result when one or more electrons from one atom or group of atoms is transferred to another atom. Positive and negative ions are created through the transfer. In covalent compounds no electrons are transferred; instead electrons are shared by the bonded atoms. The physical properties of a substance‚ such as melting point
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Chemical Nomenclature refers to the naming systems used with chemical formulas. This worksheet focuses on the most basic chemicals and nomenclature systems. Please read the information concerning each problem set and then attempt the problems associated with that information. The simplest compounds contain just two elements. Sodium chloride‚ NaCl‚ is an example of a binary compound. Several other examples are listed below. Potassium bromide KBr Calcium bromide CaBr2 Lithium fluoride LiF
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Diamonds has played an important role in jewelry industry for years‚ its sparkle and glow made it girl’s best friend. However‚ due to the high prices of all diamonds‚ illegal traders around the world buy illegal diamonds to fund terrorism‚ violence mainly in Africa‚ and to buy weapons to threaten the government and people in African regions. Blood diamonds or converted diamonds is a term used for a diamond mined in a war zone and sold to finance war on the mined country‚ and to buy weapons. This
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