Differences Between Ionic and Covalent Compounds Abstract In chemistry‚ a compound is a substance formed from two or more elements‚ with a fixed ratio determining the composition. A defining characteristic of a compound is that it has a chemical formula. Formulas describe the ratio of numbers of atoms in a substance. Compounds may have a number of possible phases. For a compound to be a liquid or a gas and still be called a compound‚ atoms from the various elements must be stuck together in
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Organic Compounds Marilena Tagritzis 11-A Mr. Daniel Chemistry May 10‚ 2011 Organic Compounds An organic compound belongs to gaseous‚ liquid‚ or solid chemical compounds whose molecules contain carbon. Some types of carbon that contain compounds such as carbides‚ carbonates‚ and oxides of carbon and cyanides are sometimes classified as inorganic. AllotropesHYPERLINK "http://en.wikipedia.org/wiki/Allotropes_of_carbon" of carbon such as diamond and graphite may also be classified as inorganic
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are useful for determination of mixture of different metal ions in solution. COMPLEXOMETRIC TITRATIONS 4 COMPLEXOMETRIC TITRATIONS 1 PAC-II COMPLEXOMETRIC TITRATION LIGANDS: Metal ion ( analyte ; cation) Metal ion indicators Chilon Complexing agent pM indicators ( Chelating agent L igand/Sequestering agent) Chelate Complex ion Metal co -ordination compound /Metal complex/Chelate compound Ligands or complexing or chelating agents are electron donating
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EXPERIMENT 1 IDENTIFICATION OF UNKNOWN COMPOUNDS Date of experiment : 7th August 2012 Venue: ME204 INTRODUCTION Chemical reactions are regularly categorized into 3 types: oxidation-reduction (redox reaction)‚ precipitation (double displacement) and acid-base reaction (double displacement) Type 1: Oxidation-Reduction Reactions Oxidation-reduction processes include the movements of electrons form oxidants to reductants‚ which lead to increases in oxidation
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Representations A mere reflection of what we want to see. Mere reflections of our memories. Or of us. I think representations in this poem‚ in terms of my perspective are a mere reflection of ourselves or what we want to think. The imagery is shown by our “representations”. In the poem the speaker defines representations as “things residing inside the brain.” (Sanes). I guess this kind of relates to my definition because representations are what we see‚ from our perspective. What we think
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different in both these versions of Macbeth. In the BBC movie‚ it is set in an exquisite restaurant whereas in the original play script it is set in a castle. These settings‚ even though they seem much different are very alike. The character representation is very much the same in the play script and the film. In both‚ Macbeth has long consideration before killing Duncan. Finally when the deed is done‚ Macbeth feels a huge guilt onslaught. This is represented in the film and the play script by the
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Elvin Banuelos Back to Representation Robert Zemeckis’s Back to the future takes place during the 1950’s‚ a time when capitalism was on the rise in America. It serves a greater purpose than showing what it’s like for Marty Mcfly to travel back in time‚ but rather real events which had occurred prior to the 1950’s‚ including the beginning of the Cold war versus the Soviet Union. The movie serves as a good representation on how this country has changed its way of thinking from the 50’s until the
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Assignment: Atomic Theory 1. Write the complete symbol and determine the no. of electrons‚ protons and neutrons of the following e- p+ n a.) Oxygen - 8 8 b.) Cesium - 55 55 c.) Argon - 18 18 d.) Uranium - 92 92 e.) Copper - 29 29 2. Calculate the atomic mass of sulfur from its natural isotope. f.) Sulfur-36 g.) Sulfur-32 h.) Sulfur-33 i.) Sulfur-34 3. Complete this table. Symbol of Elements | Atomic Number | Atomic Mass | #
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Economies of scale Definition Reduction in long-run average and marginal costs‚ due to increase in size of an operating unit (a factory or plant‚ for example). Economics of scale can be internal to a firm (cost reduction due to technological and management factors) or external (cost reduction due to the effect of technology in an industry). Diseconomies of scale Definition Increase in long-term average cost of production as the scale of operations increases beyond a certain level
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Solutions for Chapter 2 True/False Questions 2-1 F 2-2 F 2-3 T 2-4 F 2-5 T 2-6 T 2-7 F 2-8 T 2-9 F 2-10 T 2-11 T 2-12 F Multiple Choice Questions 2-13 B 2-14 B 2-15 B 2-16 E 2-17 D 2-18 C 2-19 C 2-20 D 2-21 A 2-22 D 2-23 E 2-24 B Review and Short Case Questions 2-25 Fraud is an intentional act involving the use of deception that results in a material misstatement of the financial statements. Two types of misstatements are relevant to auditors’ consideration
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