IGCSE PRE-AICE CHEMISTRY 0620 OFFICIAL STUDY GUIDE Notes: To avoid any confusion concerning the symbol for litre‚ dm3 will be used in place of l or litre.Valence electrons are known as valency electrons for this test. Nature of Matter The states of matter are solid‚ liquid‚ and gas‚ in respective order of kinetic energy. State of Matter | Definite Volume | Definite Shape | Solid | Yes | Yes | Liquid | Yes | No | Gas | No | No | Diffusion:
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Chemistry Exam Review Matter and Chemical Bonding Significant Digits All non zero integers are significant ~ 456cm All zeros to the left of the first non zero digit are not significant~ 0.005kg All zeros between non zero digits are significant~ 207.08 km All zeros at the end of a number that has a decimal point are significant ~ 34.070 mg Density Density is a physical property of matter‚ as each element and compound has a unique density associated with it. Density defined in a qualitative
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CHEMISTRY LEVEL 3C (CHM 315109) CORROSION THEORY SUMMARY & REVISION QUESTIONS (CRITERION 5) Tasmanian TCE Chemistry Revision Guides by Jak Denny are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License INDEX: PAGES • INTRODUCTION • EFFECTS OF CORROSION • ELECTROCHEMICAL EFFECTS • FACTORS AFFECTING CORROSION • THE RUSTING OF IRON • IDENTIFYING ANODES & CATHODES • DIAGRAMMATIC SUMMARY • DIFFERENTIAL AERATION • DIFFERENT METALS IN CONTACT • CORROSION
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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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Chemistry Summary The particle theory: 1. Matter is made of tiny particles 2. Particles of matter are in constant motion 3. Particles of matter are held together by very strong electric forces 4. There are empty spaces between the particles of matter that are very large compared to the particles themselves. 5. Each substance has unique particles that are different from the particles of other substances 6. Temperature affects the speed of the particles. The
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of particle theory Atom: The smallest particle that cannot be divided by any physical or chemical means Molecule: Two or more atoms (the same or different) that are chemically bonded together Lattice: 3D array of oppositely charged particles (ions) held together by an electrostatic attraction Element: Consists of only one type of atom Compound: Composed for two or more elements that are chemically bonded together. Contains a fixed number of atoms of each component element. Pure Substance:
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Ca‚ Sr‚ Ba‚ Ra Beryllium‚ Magnesium‚ Calcium‚ Strontium‚ Barium‚ Radium These elements bond by metallic bonds (intramolecular forces) to form giant metallic structures. The size of the atoms increases down the group Physical properties of Group II metals Ionization The process of removing an electron from an isolated atom (or an ion) to form a cation. First ionization: M(g) M+(g) + 1e- Second ionization: M+ (g) M2+(g) + 1e-
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National Institute of Geological Sciences Laboratory in Principles of Geology Geology 11.1 Laboratory Manual Name: _____________________ Student #: ___________________ Section: ____________________ Copyright © 2003 National Institute of Geological Sciences. All rights reserved. National Institute of Geological Sciences Laboratory in Principles of Geology Representing the Surface of the Earth Objectives To be able to interpret the data represented on a map To be able to identify
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by filtering water to the point where it is free of ions. This ion-free water will strip ions from surrounding material‚ acting like a super-solvent. This is often used in semiconductor and other high-tech processing as a "soft" solvent and relatively cheap cleaning fluid. Distilled water is most often produced by vaporizing less pure source water (tap‚ salt or even urine) and condensing the pure water vapour. During this process‚ free ions from the atmosphere‚ containers or other sources are
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Biology LabPaq / Published by: Hands-On Labs‚ Inc. sales@HOLscience.com / www.HOLscience.com / Toll Free 866.206.0773 A laboratory Manual of Small-Scale Experiments for the independent Study of general Biology 50-0053-BK-02 LabPaq® is a registered trademark of Hands-On Labs‚ Inc. (HOL). The LabPaq referenced in this manual is produced by Hands-On Labs‚ Inc. which holds and reserves all copyrights on experiences. The laboratory manual included with a LabPaq is intended for the sole use
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