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2122-oct-sat-test-mc9

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Chapter 7.4 ionic bond and ionic compound

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Chapter7.2 Formation ions from atoms

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Chapter7.2 由原子生成離子

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化學教室-第22章-7-在學校實驗室進行裂解作用

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Chemistry tutorial-Ch22-7-Cracking in the laboratory

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Chemistry tutorial-Ch22-6-Writing chemical equations about cracking

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Chemistry tutorial-Ch22-5-Cracking of petroleum fractions

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Chemistry tutorial-Ch22-4-Mechanism of substitution reaction

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