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"Amount of Substances" Important elements in seawater - sodium and chlorine PPT (Lesson 3: Amount and concentration of substances)
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"Amount of Matter" Important elements in seawater - sodium and chlorine PPT (Lesson 2: Gas molar volume)
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"Amount of Substances" Important elements in seawater - sodium and chlorine PPT (Lesson 3: Amount and concentration of substances)
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Green fresh leaves water drops PowerPoint template download
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Chinese wind slide template with ink painting background
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"Neutralization Reaction of Acids and Bases" Acids and Bases PPT Courseware 3
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"The Nature of Seawater and the Impact of its Movement on Human Activities" Physical Geographic Elements and Phenomenon PPT (The Nature of Seawater and its Impact on Human Activities in the First Lesson)
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"Neutralization Reaction of Acids and Bases" Acids and Bases PPT Courseware 4
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