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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DASMARIÑAS CITY COLLEGE OF SCIENCE AND COMPUTER STUDIES PHYSICAL SCIENCE DEPARTMENT GENERAL CHEMISTRY I LABORATORY (CHEM210L) S.Y 2013-2014 SCIENTIFIC PAPER CHEMICAL PERIODICITY MARIE JOE A. ALTERADO JUNE 31‚ 2013 CPE32 AUGUST 7‚ 2013 GROUP NO. 1 ENGR. IMELDA C. GALERA ABSTRACT The chemical periodicity was demonstrated by using different samples of Group IA‚ IIA and IVA elements. Each of the samples was placed in a test tubes and the physical state
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Experiment 3: Chemical Equilibrium Purpose The purpose of this experiment was to determine the equilibrium constant for the formation of FeSCN2+. Introduction Chemical equilibrium is the point in a reversible reaction where the concentration of the reactants and that of the products remains constant. This point of equilibrium is referred to as the Kc value‚ which can be obtained using the formula: Kc = [product] [reactant] In this experiment‚ we used a spectrophometer to
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Abstract Chemical equilibrium occurs when a reversible reaction is happening forward and backward‚ at the same time by the same amount‚ is equal. Two procedures were made. First is the Effect of Concentration on Equilibrium. The solution became orange when it was diluted with ammonium hydroxide and the solution became yellow when water was added to the solution. In the second‚ Effect of Temperature on Equilibrium‚ the solution turned into a light brown gas when it was placed in the refrigerator
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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 bond: bond in which one or more pairs of electrons are shared by two atoms. Ionic bond: bond in which one or more electrons from one atom are removed and attached to
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Chemical Reaction Lab Well #1 CuCl2 + Al (shot) - Bubbling - Turning reddish-maroon - 33oC Well #2 CuCl2 + Al (foil) - Bubbling‚ but less than well #1 - Turning black - 28oC Well #3 CuCl2 + Zn - Turned black then red - No bubbling - 29oC Well #4 CuCl2 + NH4OH - Cloudy - No bubbling - 26oC Well #5 CuCl2 + NaCO3 - Not mixing with CuCl2 - Heterogeneous - 25oC Well #6 CuCl2 + AgNO3 - Cloudy - Top layer is white -29oC 1. The more pronounced reaction was the aluminum
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Dawood Group History 1905 Ahmed Dawood was born in Bantva‚ a renowned place in the state of Kathiawar‚ India. 1917 Ahmed Dawood went to his grandfather‚ Abdul Ghani Haji Noor Mohammad in a small town Terichura in the state of Maysore to learn under his guidance. He worked in his Grandfathers shop of cotton yarn and various utilities for about two years‚ where he was introduced to the business basics. 1918 Owing to the keen interest of Ahmed Dawood in business‚ his Grandfather sent him to Shimoga
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entrepreneurship at the Dow Chemical Company Dow Chemical Company Description Dow Chemical is a multi-national chemical manufacturing company‚ specifically serving various consumer markets with innovative chemicals and plastics products. With net profit margins dropping over a period of time‚ the firm had prioritized growth initiatives in the early 2000s. The emergence of the internet had empowered start-ups to disrupt the chemical manufacturing industry
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Chemical equations are the symbolic representations of chemical reactions that are made up of reactants and products. It is made up of the chemical formulas of the reactants and the chemical formula of the products. The reactants are the substances or chemicals that takes part in during a reaction and the products are the chemicals are the substances that result from the chemical reaction. Reactants are on the left side of the chemical equation and the products are on the right side of the chemical
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2 Chemical warfare What is Chemical Warfare: To understand chemical warfare you must first understand what a chemical agent is. A United Nations report from 1969 defines chemical warfare agents as " ... chemical substances‚ whether gaseous‚ liquid or solid‚ which might be employed because of their direct toxic effects on man‚ animals and plants ... ". This means basically that any chemical that is used to directly effect and harm a person‚ plant‚ or animal would be an act of chemical warfare
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