Chemical Reactions and their Classifications 26 October 2012 Abstract: Ordinary laboratory ware was used to determine how many of what type of chemical reactions occurred. This yielded three decomposition reactions‚ four substitution reactions‚ and three metathesis reactions. Introduction There are many different types of chemical reactions in the study of chemistry; A composition reaction (also known as synthesis) is defined as the reaction that occurs when two single compounds combine in
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Determining the Percent Copper and Zinc in Pennies from Density Lab Report Procedure: For pre-1982 pennies- Mass 10 pennies‚ record data. Fill a 100mL graduated cylinder to 40mL or enough to fully submerge the pennies with water‚ record the volume in data table. Carefully place the pennies into the graduated cylinder‚ record the final volume of the water in data table. To find the volume of the pennies‚ subtract the final volume from the initial‚ record the data. Repeat this procedure twice more
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Name: Marcus Gonzales Date: Wednesday 12th September 2012 Form: L62 Subject: Biology Teacher: Ms. Hutton Lab #: 1 Title: Food Tests Aim: To test an unknown substance for various food substances. Apparatus/Materials: * Unknown Solution X * NaOH * Iodine * Ethanol * Copper Sulphate * Benedict’s Solution * HCl * Cold Water * Syringe * Beakers * Bunsen burner * Tripod stand * Test tubes * Dropper Introduction: This Lab shows
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Indian Geotechnical Conference – 2010‚ GEOtrendz December 16–18‚ 2010 IGS Mumbai Chapter & IIT Bombay Pseudo-static Seismic Stability of Basal Reinforced Embankment with Oblique Pull Chakravarthi‚ V.K. Ramu‚ K.1 Associate Professor e-mail: vkchakravarthi@yahoo.com Associate Professor e-mail: ramu_k@lycos.com Department of Civil Engineering‚ GMR Institute of Technology‚ Rajam 1 Department of Civil Engineering‚ JNTU Kakinada‚ Kakinada ABSTRACT Seismic stability of embankments
Free Force Classical mechanics Tensile strength
Issues with Solder Alloys‚ Solder Pastes and Lead-free Solders 1. Solder Alloy Considerations on selecting solder alloy should be based on the following criteria [1]: 1) The melting range of solder alloy‚ considering application temperature; 2) The mechanic properties of solder alloy‚ considering to application conditions; 3) Metallurgic compatibility‚ considering leaching phenomenon and possible intermetallic compound; 4) Compatibility with application environment; 5) Wetting performance
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NAME: EDWARD AFUTU INDEX NO: 8030212 EXPERIMENT: I.2.2.2. DEMONSTRATOR: MISS NAOMI KABIRI
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Classes of Chemical Reactions Whenever a reaction takes place‚ energy is changed as well when the substances react chemically. Scientists have taken these changes in energy and generalized them. Scientists can take these generalizations and discover more about the nature and tendencies of matter. In this lab‚ the purpose was to perform seven reactions‚ write down their equations‚ and identify the type of reaction. In this lab report‚ several methods of displaying this information will be applied
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Pernicious Anemia and its association to orthostatic hypertension Pernicious anemia is the major form of vitamin B12 deficiency. It is caused by serum antibodies against intrinsic factor which leads to B12 deficiency rather than by B12 deficiency itself. Absorption of vitamin B12 requires intrinsic factor which is secreted by parietal cells. Pernicious anemia is marked by autoimmune attack on gastric mucosa and a loss in parietal cells. Approximately 75% of the affected patients have type I antibody
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Determining the Percentage of Copper in a Copper Ore Aim: To determine the percentage of copper present in malachite. Hypothesis: That the percentage of copper in the malachite will be four percent. Materials: 2 x 250mL beaker‚ pestle‚ malachite‚ sulfuric acid‚ water‚ 2 x filter paper‚ funnel‚ filter stand‚ Safety Precautions: Wear safety glasses at all times when dealing with chemicals and apron to avoid ruining clothes. Method: Record the mass of the malachite sample. Place the malachite
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