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    Chemical Element

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    fires and is a tool that you should carry when you go into the woods. Cerium and the element before‚ lanthanum are both used for dramatic spark effects in movies. They get a big block of it and put it to a grinder. Its atomic number is 58 and its chemical symbol is Ce. The last element I will discuss is neodymium. It is the best known out of the lanthanide series out of rare earths because of the one and only neodymium magnets. They are the strongest magnets in the world and there are many purposes

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    Chemical Bonding

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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 Senses

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    Chemical Senses OLFACTION The sense of smell. Begins with the detection of molecules suspended in the air Olfactory stimuli Must be soluble in fat Taken through the nostrils and circulated within the nasal cavities connected to the nostrils. Olfactory epithelium Thin sheet of cells which contain neural receptors for olfaction Contains olfactory receptor cells and glia-type support cells that produce mucus Also contains basal cells which give rise to new receptors when needed Olfactory

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    Chemical Proportionality

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    Chemical Proportionality (Carbonate and Hydrochloric Acid) Introduction: The purpose of this experiment is what happens when a solid substance‚ a metal carbonate is added slowly to a solution of an acid. We are finding methods of determining acid concentration. For us to balance certain equations‚ we will use a stoichiometry. For this experiment‚ we will need to set up the ratio and finding the concentration of HCI. Procedure: • Grab 4 different beakers. • Add a small amount of sodium carbonate

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    Polysar Ltd.

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    BACKGROUND Polysar Limited is Canada’s largest chemical company. It is structured into 3 groups‚ namely‚ basic petrochemicals‚ rubber‚ and diversified products. Rubber Group is the largest of the three operating units of Polysar Limited. The primary users of its products‚ such as butyl and halobutyl‚ are manufacturers of automobile tires; other users are from various industries. In 1986‚ Rubber group contributed 0.8 billion which is 46 percent of the company annual sale. The operation of the group

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    Chemical Reactions

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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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    Chemical Notes

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    CHEMICAL MEDIATORS OF INFLAMMATION Cell derived mediators Mediator | Source | Function | Vasoactive amines | Histamine | Mast cells‚ basophil‚ platelet | Vasodilation‚ ↑ vascular permeability‚ endothelial activation | Serotonin | platelets | Vasodilation‚ ↑ vascular permeability | Eicosanoids | Prostaglandins | Mast cells‚ leukocytes | Vasodilation (PGD2‚PGE1‚E2 & PGF2-α)‚ pain (PGE2)‚ fever | Thromboxane A2 | | Promotes platelet aggregation‚ vasoconstriction | Prostacyclin

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    Kathmandu Ltd

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    PART 1 SWOT Analysis 1.1 Industry Analysis Porter’s five forces analysis is presented as below for industry analysis of Kathmandu: Industry Competition→High | * Leadership in clothing and equipment retail in Australia and New Zealand. * Competitors within this area include | Barriers of entry→Medium-High | * Relatively low level of product design differentiation * High barriers for technically credible products | Threat of substitutes→Medium-High | * A wide variety of other

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    Infosys Ltd

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    [pic] Infosys Limited (NYSE: INFY) was started in 1981 by seven people with US$ 250. Today‚ we are a global leader in consulting‚ technology and outsourcing with revenues of US$ 7.231 billion (LTM Q3 FY13). Many of the world’s most successful organizations rely on Infosys to deliver measurable business value. Infosys provides business consulting‚ technology‚ engineering and outsourcing services to help clients in over 30 countries build tomorrow’s enterprise. Our award-winning Infosys Labs and

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    Chemical Separation

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    Chemical Separation Introduction: The objective of this experiment was to extract the pigments from spinach leaves‚ perform Thin Layer Chromatography (TLC) on the spinach leaf extract‚ and then determine the best solvent mixture to use to separate the pigments in the extract. The pigments are located inside the chloroplast walls in the cells of the spinach leaves. In order to obtain the pigments the cell walls must be broken down thus exposing the pigment containing chloroplasts. Upon

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