terms of water as: 4 1. A constituent of cells and its role as both a solvent and a raw material in metabolism 4 2. A habitat in which temperature extremes are less than nearby terrestrial habitats 4 3. An agent of weathering of rocks both as liquid and solid 5 4. A natural resource for humans and other organisms 5 5.2.7 Explain why water’s ability to absorb heat is important to aquatic organisms and to life on earth generally. 6 5.2.8 Explain what it is meant by thermal pollution and
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reactants used and the amounts of products formed in a chemical reaction”. Basically‚ Stoichiometry is the science of counting and studying the relationship between the amounts of the reactants to the product. To think of stoichiometry outside of chemistry‚ imagine a bookshelf. To assemble the bookshelf you may need 3 planks of wood‚ 1 giant plank of wood‚ and 20 nails. Even though the amount of the reactants is high‚ the product would be only one bookshelf. Stoichiometry is basically studying the
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Forensic Chemistry and Forensic Chemist Forensic chemistry is becoming an increasingly popular topic. It is being used quite often in the real world with police investigations‚ cases‚ and is also being magnified in television shows including Forensic Files‚ CSI‚ and Bones (What is Forensic Chemistry?). Forensic chemistry is important because without it we wouldn’t know the outcome of a crime. The forensic chemist’s job is to examine evidence given to them from a crime scene‚ when it happened‚ and
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Chemistry of Fireworks By Anuradha Sahu Everyone enjoys the amazing firework shows on the Fourth of July with the beautiful vibrant colors and sparks every year. Fireworks have been part of this world for a very long time. They have been used for enjoyment and for signalling purposes. Every culture has their own significance and use of fireworks. But all fireworks have something in common; the chemistry that makes them work. No matter where you find them‚ they are made up of the same compounds
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SYLLABUS Cambridge O Level Chemistry 5070 For examination in June and November 2014 University of Cambridge International Examinations retains the copyright on all its publications. Registered Centres are permitted to copy material from this booklet for their own internal use. However‚ we cannot give permission to Centres to photocopy any material that is acknowledged to a third party even for internal use within a Centre. © University of Cambridge International Examinations 2011 Contents
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Experimental Chemistry In this topic‚ you will learn: www.revision-notes.co.cc Hazard Warning Labels www.revision-notes.co.cc Measurement: Mass‚ Volume‚ Time and Temperature www.revision-notes.co.cc www.revision-notes.co.cc Collection of Gases www.revision-notes.co.cc Identification of Gases www.revision-notes.co.cc The Particulate Nature of Matter In this topic‚ you will learn: www.revision-notes.co.cc States of Matter Kinetic Theory www.revision-notes
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and that compounds are formed by combination by two or more atoms. Work Cited http://www.iep.utm.edu/aristotl/ http://profmokeur.ca/chemistry/history_of_the_atom.htm
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August 22‚ 2013 Assignment 1: The Chemistry of Life Effects of Acid Rain There are many different types of negative effects acid rain has on the world. Acid rain is the mixture of wet and dry deposition from the atmosphere containing higher than normal amounts of nitric and sulfuric acids. Pollution contributes to the forming of acid rain. One of the main causes is industrial burning of coal and other fossil fuels the oxides they contain and combine with atmospheric water which forms acids.
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CONCEPTS IN ORGANIC CHEMISTRY • Inductive Effect : Inductive effect is defined as permanent displacement of shared electron pair in a carbon chain towards more electronegative atom or group. Types of Inductive effect : 1.Negative Inductive Effect : (—I effect‚ Electron withdrawing effect) when an electronegative atom or group (more electro negative than hydrogen)is attached to the terminal of the carbon chain in a compound‚ the electrons are displaced in the direction of the attached
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to observe a shift in equilibrium concentrations associated with changes in temperature 4. to explain the observations obtained by applying Le Chatelier’s principle Materials Required: See page 209 Heath Chemistry Laboratory Experiments Procedure: See pages 209-211 Heath Chemistry Laboratory Experiments Data and Observations: Table 1 Equilibrium Involving Thymol Blue REAGENT ADDED STRESS (ION ADDED) COLOR OBSERVATION DIRECTION OF EQUILIBRIUM SHIFT HCl (Step
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