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Chemistry tutorial-Ch3-1-The ocean

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Chemistry tutorial-Ch4-1-Rocks and minerals

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Chemistry tutorial-Ch6-2-Groups I, II, VII and 0 elements

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Chemistry tutorial-Ch7-1-Formation of ions

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Chemistry tutorial-Ch7-2-Formulae of ions

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Chemistry tutorial-Ch7-3-Types of ions

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Chemistry tutorial-Ch7-4-Formation of ionic bonding

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Chemistry tutorial-Ch7-5-Chemical formula and name of an ionic compound

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Chemistry tutorial-Ch7-6-Colours of ions

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