computer ------------------------------------------------- Computational chemistry From Wikipedia‚ the free encyclopedia Computational chemistry is a branch of chemistry that uses principles of computer science to assist in solving chemical problems. It uses the results of theoretical chemistry‚ incorporated into efficient computer programs‚ to calculate the structures and properties of molecules and solids. Its necessity arises from the well-known fact that apart from relatively recent results
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containing the hydrocarbons. Shake each test tube gently and record any change that takes place in the aqueous layer over about 5 minutes. Reaction of hydrocarbons with bromine water: 1) Into three separate‚ labeled test tubes place 1 ml of cyclohexane‚ cyclohexene and toluene respectively. 2) Add 1 ml of bromine water to each of the test tubes containing the hydrocarbons. Shake each test tube gently and record any color change in each case. Results: Reaction of hydrocarbons with acidified
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Title : Expt.1 Determination of the enthalpy (heat) of reaction of a monobasic acid with sodium hydroxide Experiment no : 1 Experiment title : Determination of the enthalpy (heat) of reaction of a monobasic acid with sodium hydroxide Objectives: 1) To understand the enthalpy chemistry. 2) To determine the calorimeter constant. 3) To determine the enthalpy reaction of acid-base reactions. 4) To study the exothermic reaction. Apparatus and Materials : * Dewar flask
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been produced by the IB‚ for teachers to use in the examination sessions in 2012 and 2013. It should be noted that most tasks previously produced and published by the IB will no longer be valid for assessment after the November 2010 examination session. These include all the tasks in any teacher support material (TSM)‚ and the tasks in the document tfolio tasks 2009 The tasks in the in the 2012 examinations but N O T in 2013. Copies of all TSM tasks published by the IB are available on the
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Lucian Skerjanec Date: 23/11/12 IB 11 TOK Mr. Bryant Theory of Knowledge IB 11 Semester 1 Test Review Guide Propositional Knowledge and “Knowing That” Plato and his students began studying knowledge by analyzing if it was valid. They came to conclude that for knowledge to be certain‚ it must… Can be described and communicated to anyone effectively and accurately. It must be absolutely convincing to anyone you communicate with. A “proposition” is a formal statement of convincing knowledge
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PSYCHOLOGY liam.o’leary.11@ucl.ac.uk In Psychology‚ you will only get penalised for NOT ASKING QUESTIONS. Paper 1 = Core material 50% of final grade Section A – 53 % Section B – 47% A – Knowledge & Comprehension B – Evidence of critical thinking: application‚ analysis‚ synthesis and evaluation C – Organisation (Structure) Strategy: 20 mins + 5 mins planning for each of SAQs questions 50 mins for LAQ question CHOOSING and planning 10 mins for spellcheck Paper 2 = 25% of final grade Two
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Chapter 5 Notes The study of energy and its transformations is called thermodynamics. An aspect of thermodynamics that deals with the relationships between chemical reactions and energy changes involving heat is called thermochemistry. 5.1 The Nature of Energy Energy is defined as the capacity to do work or produce heat. Work is the energy used to cause an object with mass to move. Heat is the energy of an object that causes its temperature to increase. Kinetic and Potential Energy
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diversity of the smoky hill high school IB class of 2013 and 2014 Candidate Name: Zainab Sanni Candidate Number: 000631-063 Date of Submission: 10 April 2013 Word Count: 1‚078 Research Question: How does the diversity of the different ethnicity of the junior class of IB students at Smoky Hill High School differ from the diversity of the different ethnicity of the finishing senior class of IB students at smoky hill high school? Over the years‚ has IB been more accepting of the different cultures
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Macro-Economics What is Macroeconomics? Macroeconomics studies the behaviour of the entire economy‚ and how resources are allocated. It examines economy – wide phenomena such as changes in unemployment‚ national income‚ rate of growth‚ gross domestic product‚ inflation and price levels. Macroeconomics deals with 5 variables: Variable Macroeconomic objective Economic growth A steady rate of increase of national output Employment A low level of unemployment Price stability A low and stable
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Baking Project There are several chemical reactions taking place in the general baking of cakes. Every ingredient has its own function and causes a different reaction Synthesis: * Egg yolks (modify molecule’s structure) helps the oil-based and water-based components of the cake mix together. When eggs are cooked‚ the protein molecules become uncurled when exposed to heat and create new molecular bonds with other nearby protein molecules. When the egg is completely cooked‚ it helps form a
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