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"Acidic Solutions and Alkaline Solutions" Initial Acids, Bases and Salts PPT Courseware
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"Commonly Used Salts" Common Acids, Alkalis, and Salts PPT Courseware
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"Transformation of Sulfur" Nature and Transformation of Matter PPT (Lesson 1 Sulfur elements in different valence states in nature and the transformations between them)
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"Acidic Solutions and Alkaline Solutions" Initial Acids, Bases and Salts PPT Courseware
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"Commonly Used Salts" Common Acids, Alkalis, and Salts PPT Courseware
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"Acidic Solutions and Alkaline Solutions" Initial Acids, Bases and Salts PPT Courseware 3
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"Acidic Solutions and Alkaline Solutions" Initial Acids, Bases and Salts PPT Courseware 3
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"Chlorine and its Compounds" Important elements in seawater - sodium and chlorine PPT (Lesson 2 Laboratory preparation method of chlorine and test of chloride ions)
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"Acidic Solutions and Alkaline Solutions" Initial Acids, Bases and Salts PPT Courseware 2
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"Transformation of Sulfur" Nature and Transformation of Matter PPT (Lesson 1 Sulfur elements in different valence states in nature and the transformations between them)
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