Alum Synthesis: The Chemical Process of Recycling Aluminum Introduction By recycling aluminum cans‚ the costs and energy savings are dramatically more resourceful and efficient than producing aluminum from what it is naturally found in‚ bauxite ore. The process of recycling aluminum to produce potassium aluminum sulfate‚ a common alum‚ will be done through a serious of chemical reactions. Through this reaction‚ percent yield will be determined. Materials and Methods The mass of a 250 mL
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There are trans fats everywhere in the foods we eat everyday. If something we eat doesn’t have a trans fat then it probably has a saturated fat. Baked goods‚ cookies‚ cakes‚ and frozen foods have high levels of trans fats. Things that are incorporated into almost everyone’s diets. We can’t completely eliminate trans fats AND saturated fats without taking away many foods that everyone enjoys. Restaurants would more than likely lose more business than they already are in this recession. Yes‚ it may
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Requirements For the System Analysis and Design (SAD) Jordan R. Dating Jahren Ross M. Lopez Marinella Diane Q. Gavarra Kenneth Farley PROPONENT TABLE OF CONTENT Chapter 1 (Problem and its Settings) a. Background of the Study. b. Statement of the Problem. c. Assumption. d. Scope and Limitation. e. Significance of the Study. Chapter 2 (Analysis of the existing & Propose Systems) a. Procedure of the existing system. b. Analysis of the existing system. c. Problems encountered in the existing system. d
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Protein synthesis is the process whereby proteins are produced‚ or synthesized‚ in living things according to "directions" given by DNA (deoxyribonucleic acid) and carried out by RNA (ribonucleic acid) and other proteins. As suggested earlier‚ this is an extraordinarily complex process that we do not attempt to discuss here. Following synthesis‚ proteins fold up into an essentially compact three-dimensional shape‚ which is their tertiary structure. DNA contains the instructions for a cell’s structure
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Topic 11a – Group 7‚ the Halogens Revision Notes 1) Trends in physical properties of the elements • At room temperature‚ Cl2 is a pale green gas‚ Br2 is a brown liquid‚ I2 is a blue-black solid. • In Group 7‚ boiling point increases down the group because the molecules have more electrons and‚ therefore‚ stronger van der Waal’s forces which require more energy to overcome them • Electronegativity is the ability of an atom to attract the electrons in a covalent bond • Down
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by : Directorate of Education‚ Delhi SOME IMPORTANT REASONING BASED QUESTIONS OF ORGANIC CHEMISTRY 1. Chlorobenzene is less reactive than chloromethane. Ans. In chlorobenzene‚ each carbon atom of benzenering is sp2 hyridised and is electron withdrawing. Chlorine atom donates a lone pair of electron and acquire positive charge. The negative charge is delocalised on ortho and para position by resonance. C-Cl bond acquires partial double bond character and is 169 pm as compared to 17.0 pm in chloromethane
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What You Need To Know for the Chemistry Regents Exam The Test The Chemisty Regents Exam is broken down into three sections: Part A: 35 mulitple choice questions from all units covered over the course of the school year. Part B: Approximately 25 questions‚ with a mix of short answer and multiple choice. Questions focus on the Reference Tables‚ graphing‚ and laboratory experiments. Part C: Approximately 15 short answer questions‚ most broken down into smaller parts. This is often an
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Explain the effects of the Purges? Introduction The Great Purge was a campaign of political repression in the Soviet Union orchestrated by Joseph Stalin from 1934 to 1939. It involved a large-scale purge of the Communist Party and government officials‚ repression of peasants and the Red Army leadership‚ and widespread police surveillance‚ suspicion of "saboteurs"‚ imprisonment‚ and arbitrary executions. 1st Para Scientists‚ Doctors and Engineers‚ were heavily targeted‚ imprisoned and killed.
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ALKENES EXERCISES 1. Draw the one constitutional isomer that is missing from column 1 of Model 1. (2 points) 2. Draw ten skeletal representations constitutional isomers missing from column 2 in Model 1 as you can. (Hint: Other than cyclohexane‚ there are 11 ways to draw a six-carbon backbone that contains a ring. Plus there are isomers of cyclohexane that do not contain a ring.) (10 points) 3. Are any constitutional isomers missing from Column 3 in Model 1? A good way to answer
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Trans fat has been a topic that mostly now brings great concern to our society. Not all fats are bad. According to the article of food safety‚ trans fats are when manufactures add hydrogen to vegetable-oil a process called Hydrogenation. Hydrogenation is use to increase shell life and flavor. There are two types of trans fats‚ found in dairy and meat. Natural trans-fat is not a concern; in our society the concern has been focused on artificial trans fats. There is a range of food products where
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