Chemical Lab Report INVESTIGATING THE FACTOR AFFECTING THE VOLTAGE OF VOLTAIC CELL Name: Lim Seong Hseng Date: 20th March 2013 IA CRITERIA ASSESSED: D Declaration: I declare that this report I have submitted is my own original work and I have acknowledged the use of words or ideas of another person. Signature:……………… Marks:………………. Introduction Aim: To investigate the factor affecting voltage of voltaic cell. Research Question: How does coupling of different metals from the electroactivity
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Ahmed Fun Filled Hands On Science 17 January 2013 Demonstrations in Chemistry Class Chemistry is a class that a lot of college student are afraid of‚ and when I think of chemistry‚ complex equations that don’t benefit come to my mind. The reason is that all I got out of chemistry is those unbeneficial equations‚ for me at least. Also‚ I learned that H2O is water. With all those negative statements‚ I still believe that chemistry is a very important subject to understand the magic of this life and
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Do you think Heath brought significant changes to Britain? Edward Heath rapidly raised to power‚ he was appointed a junior whip in 1951 then promoted to Chief Whip in 1955. He was appointed Minister of Labour in 1959. in 1960 Lord Privy Seal‚ in 1963 President of the Board of Trade. In 1964 the Conservative party lost the general election and its current leader‚ Alec Douglas-Home‚ stepped down not long after but not after changing the leadership election rules‚ which made it easier for the rank
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education CHEMISTRY Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) 0620/01 October/November 2008 45 Minutes *6400528663* READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples‚ paper clips‚ highlighters‚ glue or correction fluid. Write your name‚ Centre number and candidate number on the
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CHEMISTRY OF NICOTINE Date Submitted: March 17‚ 2010 Introduction Tobacco has a long history and has had a significant impact since first introduced to Western society in the 16th century. There is evidence that Native Americans were using tobacco long before the 16th century. They smoked through a pipe for special religious and medical purposes but the worldwide spread of tobacco was initiated as a result of European discovery by Spanish‚ Portuguese and French explorers.(1‚2) Christopher
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A Comparative Study On The Combustibility Of Ethanol (C2H5OH) And Hydrogen Peroxide (H2O2) Mixtures As Fuel Chemistry January 31‚ 2013 Revised February 15‚ 2013 Abstract In this experiment‚ the proponents used mixtures with varied proportions of ethanol and hydrogen peroxide to know which would make a more efficient‚ clean‚ and stable combination. Compared to conventional fuels‚ ethanol contains 36% oxygen thus resulting in more complete combustion. This greatly lowers
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3090 3090▌ SHORT REVIEW Reaction of Diazo Compounds with Organoboron Compounds short review Huan Li‚ Yan Zhang‚ Jianbo Wang* Reaction of Diazo Compounds with Organoboron Compounds Abstract: The transition-metal-free reactions of diazo compounds with organoboron compounds are reviewed. This type of reaction provides an alternative approach for the formation of C–C‚ C–B‚ and C–Si bonds. Moreover‚ by using tosylhydrazones as diazo compound precursors and boronic acids/esters as the
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Name__________________________ Chemistry 190: Organic Chemistry EXAM 3 Thursday April 21‚ 2011 1. (12) ______ 2. (14) ______ 3. (20) ______ 4. (12) ______ 5. (54) ______ 6. (16) ______ 7. (12) ______ 8. (10) ______ Total (150) ______ The exam consists of twelve numbered pages and an unnumbered cover sheet. Make certain that you have a complete exam. You will have two hours to work on the exam. No books or notes are allowed; however‚ you may use a molecular model set and a calculator
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contains four sections‚ SECTION A to SECTION D. Instructions: Answer all questions in SECTION A - SECTION D. Make sure that the section heading is included and your answers are correctly numbered. The assignment must have a completed cover sheet. It must be placed in the drop-box on or before the deadline. st SECTION A ELECTRONIC STRUCTURE & IONIZATION ENERGY 1. 2. Write the electronic structure in s‚p‚d notation of the following: O‚ Na‚ Na+‚ Al‚ Cl- and Co
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9.3 – The Acidic Environment: Δ. Construct word and balanced formulae equations of all chemical reactions as they are encountered in this module: NOTE: In chemistry‚ [x] means “concentration of x” in moles per litre (mol/L). EG: [H3O+] means “concentration of H3O+ ions” in mol/L. BASIC reactions to remember: Acid reactions: acid + base salt + water acid + metal salt + hydrogen gas acid + carbonate carbon dioxide gas + salt + water Formation of hydronium: H+ + H2O H3O+ Reactions of
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