Matter and its Composition 1.0
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Metals and Non-Metals 2.0
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Physical and Chemical Changes 3.0
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Elements, Compounds and Mixtures 4.0
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Atomic Structure 5.0
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Language of Chemistry 6.0
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Air and Atmosphere 7.0
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sssssMatter and its Composition
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sssssMetals and Non-Metals
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sssssAtomic Structure
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sssssLanguage of Chemistry
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