分类： IGCSE
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Tests for gases
ammonia, NH3 carbon dioxide, C […]
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7.1 The characteristic properties of acids and bases
7.1 The characteristic propert […]
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Answers for review questions
multiple choice structural que […]
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密码保护：Workbooks
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4.1 Electrolysis
BACK 4.1 Electrolysis 1. What […]
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6.4 Redox
6.4 Redox 1. Definition In ter […]
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6.3 Reversible reactions and equilibrium
BACK 6.3 Reversible reactions […]
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9.6 Extraction of metals
9.6 Extraction of metals 1. Re […]
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6.2 Rate of reaction
6.1 Rate of reaction 1. Defini […]
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5.1 Exothermic and endothermic reactions
5.1 Endothermic and exothermic […]