The speed of chemical reactions – class experiment By Julia Shuker Year 10 science – Miss Phillips – Term 2 – 2013 – Julia Shuker Aim The aim of the experiment was to investigate the factors that increased or decreased the speed of chemical reactions between two different chemical reactions. Hypothesis If certain factors‚ such as concentration‚ temperature‚ catalyst and surface area are increased then the reaction rate will also increase due to the particles
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and Results Did you observer any chemical changes in this experiment? Yes. CuCo2 turned green when I applied heat to it. B. What evidence did you use to decide that something was a chemical change? I viewed my other test tubes to see if it there was a chemical change in those. C. Give at least two examples of chemical changes you observed. Zn and MgO when I Diluted HCL D. Classify the following properties of sodium metal as physical or chemical: • Silver metallic color: Physical
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Automobile Industry of Pakistan - An Overview The automotive industry rightly prides itself on being recognized as the “mother of all industries.” In its folds it carries many different kinds of vehicles to provide mobility to people and goods. While they may appear to be simple machines‚ their design and manufacturing have much deeper roots in all the known technologies. In-depth knowledge and skillful application of mechanical‚ electrical‚ electronics‚ chemical and a host of other technologies
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Practicum 2: Stoichiometry of Chemical Reactions Written by: Ade Istianto (2014990003) Aprizky Bagus Heldinto (2014990002) Deas Pratama (2014360004) Paskah Andreas Deo Gratias (2014370005) Sampoerna University ABSTRACT This experiment is endure to determine and study about the stoichiometry of chemical reactions in certain chemicals. The experiments were to make sure student are able to use and learn the Job’s method-the method of continuous variation-for determine the reaction stoichiometry
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Chemical Equilibrium: Le Châtelier’s Principle Abstract This experiment entitled "Chemical Equilibrium" aims to help students to investigate the effects of concentration and temperature upon the position of equilibrium in a cobalt chloride solution‚ Co(H2O)62+. In this experiment‚ cobalt crystal is dissolved with distilled water and ethanol which the initial colour is purple-pinkish and a few drops of concentration of HCl is added to the test tube‚ the final colour is in deep blue colour. Upon
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MODULE 1: THE CHEMICAL EARTH 3.1.1: Elements in Earth are present mostly as compounds because of interactions at the atomic level * Identify that matter is made of particles that are continuously moving and interacting Matter: anything that has mass and occupies space. Exists in three different states: solid (s)‚ liquid (l) and gas (g) The Particle Theory: “All matter is made up of small‚ indivisible particles called atoms that are continuously moving” | Solid | Liquid | Gas | Particle
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pubs.acs.org/joc Mechanism and Regioselectivity of the Osmium-Catalyzed Aminohydroxylation of Olefins Dominik Munz and Thomas Strassner* Physikalische Organische Chemie‚ Technische Universit€t Dresden‚ Mommsenstrasse 13‚ 01062 Dresden‚ a Germany thomas.strassner@chemie.tu-dresden.de Received November 12‚ 2009 The mechanism and regioselectivity of the osmium-catalyzed aminohydroxylation of olefins was investigated in detail by density functional theory (B3LYP/6-31G(d)) calculations in
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Chemical reactions are the basis of life on earth. As human beings‚ we are little more than the naturally abundant elements of which we are composed and the reactions between the compounds that they form. After all‚ how could life exist without water? Oxygen transport in a body the size of the human body would be impossible without the aid of a complex like hemoglobin. Besides being the basis of many of life’s intangibles‚ chemistry also plays an active role in our daily lives. Take for instance
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cancer prevention or as punishment related to sex crimes. Chemical and Surgical Castration Chemical Castration Under medical supervision anti-androgen drugs are injected under a multi-week treatment. With lower testosterone levels most men will experience a reduced sex drive‚ arousal and sexual thoughts. On sexual offenders Depo-Provera a progestin shot is used this chemical castration does not remove the testicles and if the chemical treatment is used to discontinued his testosterone and sperm
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SAFETY & HEALTH IN CHEMICAL INDUSTRY In the present global industrial scenario‚ for any industry to be successful‚ it is essential to inculcate safety culture‚ consciousness in health and environment aspects in each personnel of an organisation. IFFCO-AONLA has identified this as a major thrust area since beginning and is continuously putting efforts for improvement in the Safety‚ Health and Environment Management. N.C. Nigam‚ A.K. Maheshwari‚ N.P. Rao Indian Farmers Fertiliser Co
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