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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 11, Topic 2
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Naming compounds
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Compounds with 2 different atoms
Metal and non-metal: the name of the metal comes first and the non-metal name changes to “ide”. For example:
Chlorine + sodium → sodium chloride
Oxygen + magnesium → hydrogen bromide
Two non-metals, one of which is hydrogen: the hydrogen comes first
Bromine + hydrogen → hydrogen bromide
Other combinations of non-metals: if the element has a lower group number or is lower in a particular group, the lower element comes first, e.g. nitrogen dioxide , sulfur dioxide
Some compounds are known by their common names e.g. water
Compounds with particular groups of atoms
Sodium hydroxide, NaOH contains the hydroxide ion, OH–
Potasssium nitrate, KNO3, contains the nitrate ion, NO3–
Magnesium sulfate, MgSO4, contains the sulfate ion, SO42-
Calcium carbonate, CaCO3, contains the carbonate ion, CO32-