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"Chemistry is a science based on experiments" Entering the World of Chemistry PPT Courseware 7
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2023-09-25 18:21:13
"Nitrogen Cycle" Nature and Transformation of Matter PPT (Transformation and Generation of Ammonia in the Second Lesson)
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"Nitrogen Cycle" Nature and Transformation of Matter PPT (Transformation and Generation of Ammonia in the Second Lesson)
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"Organic Compounds in Diet" Simple Organic Compounds PPT (Lesson 1 Ethanol)
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"Chemistry is a science based on experiments" Entering the World of Chemistry PPT Courseware 6
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"Chemistry is a science based on experiments" Entering the World of Chemistry PPT Courseware 2
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