Chemical Periodicity ------------------------------------------------- ABSTRACT The experiment chemical periodicity shows the properties and reactions belonging to group IA‚ IIA‚ and IVA. Proper procedures and observations were done to determine the solubility‚ physical state‚ color‚ and appearance of the compounds namely Li2CO3‚ Na2CO3‚ K2CO3‚ CaCO3‚ and BaCO3. The results shows that Li2CO3‚ Na2CO3‚ K2CO3 were soluble in water‚ while MgCO3‚ CaCO3‚and BaCO3 were not soluble. All of these compounds
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Chemical Bonding Chemical compounds are formed by the joining of two or more atoms. A stable compound occurs when the total energy of the combination has lower energy than the separated atoms. The bound state implies a net attractive force between the atoms ... a chemical bond. The two extreme cases of chemical bonds are: Covalent Bonds Covalent chemical bonds involve the sharing of a pair of valence electrons by two atoms‚ in contrast to the transfer of electrons in ionic bonds. Such bonds lead
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The hypothesis If a chemical reaction occurs‚ then there will be indicators of a chemical change‚ was supported throughout this experiment. Throughout this experiment there were several reactions that took place‚ and an indicator of such chemical reactions could be seen throughout each one. The first piece of identifiable evidence was present in the first step‚ which was when copper (II) nitrate and sodium hydroxide were combined. When stirred‚ a blue precipitate formed at the bottom of the test
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changes are used to describe matter. A property is a trait of matter‚ when that sample of matter is in a fixed state. There are two different types of properties: physical properties and chemical properties. A change is something that alters the properties of a substance. There are two types of changes: chemical changes and physical changes. A physical property is a property that can be observed without changing the makeup (or composition) of a substance. Some examples of a physical properties
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003 10 0.0008 0.01 Ratio = 1.2 Calculations: Conclusion: Answer the following questions in complete sentences‚ giving detailed explanations and support for each of your answers. 1. Explain in your own words what it means for a chemical system to be in the state of dynamic equilibrium. All reactions are able to reach equilibrium but only if they it happens in closed systems. Dynamic equilibrium is a state of balance where forward and reversed reactions happen at the same time.
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Chemical Bank : Implementing the Balanced Scorecard Submitted By : Group 12 KUSHAL KISLAY FT151093 MEHUL JAIN FT152088 SIDDHARTHA PAUL FT154003 VIVEK KHATTAR FT154063 JAYANTH SATHEESH FT152025 Background • Chemical Banking Corporation was performing a radical organizational transformation into a marketfocused and customer-focused organization after the 1991 merger with the Manufacturers Hanover Corporation. • Shift its image from a narrow provider of traditional financial services to a broader
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Period 9 Chemical Reactions Chemical reactions happen in almost everything around us. Reactions are very important in everyday life‚ and science. Chemical reactions are the changing of substances to other substances by the breaking of bonds in reactants and the formation of new bonds in products. There are different types of chemical reactions such as combination reaction‚ decomposition reaction‚ single-replacement
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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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1. Based on your view of the objectives of performance evaluation‚ evaluate the perspectives about performance appraisal presented by the managers. I believe that each manager sees performance evaluation as serving a different purpose. Lynn‚ incorporates politics into her evaluation and doesn’t score base done today‚ she incorporates that it will be on the employees permanent record. She also inflated ratings to make an employee feel better about a personal issue. Max admits that accuracy isn’t
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Finance bored the pants off me. I fell asleep more times than not.1 —Anita Roddick‚ founder‚ The Body Shop International In the late 1990s‚ The Body Shop International PLC‚ previously one of the fastest growing manufacturer-retailers in the world‚ ran aground. Although the firm had an annual revenue growth rate of 20% in the early to middle 1990s‚ by the late 1990s‚ revenue growth slowed to around 8%. New retailers of the naturally based skin- and hair-care products entered the market‚ bringing
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