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Cambridge IGCSE chemistry
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States of matterStates of matter3 Topics
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Changing state4 Topics
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Diffusion4 Topics
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Atoms, elements and compoundsElements, compounds and mixtures
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Atomic structure and the Periodic Table
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Isotopes
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Ions and ionic bonds
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Simple molecules and covalent bonds
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Giant covalent structures
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Metallic bonding
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StoichiometryFormulas of compounds3 Topics|1 Quiz
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Chemical equations5 Topics
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Relative atomic and molecular mass2 Topics
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Moles2 Topics
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Calculating masses in reactions3 Topics
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Percentage yield and percentage purity2 Topics
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Empirical and molecular formulae2 Topics
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Moles and concentration2 Topics
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Calculating gas volumes
Quizzes
Lesson 1, Topic 1
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The three states of matter
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There are three states of matter – solid, liquid and gas
All matter is made up of particles. These particles can be atoms, molecules or ions
The arrangement of these particles determines the structure and property of each state
The state of matter depends on how strong the forces of attraction are between the particles of the material
How strong the forces are depends on three things:
The material
The temperature
The pressure
The kinetic theory is used to explain the arrangement and motion of particles in different states of matter
State symbols are often used in chemical equations
(s) for solid
(l) for liquid
(g) for gas
