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coolscienceguy

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Presentations(11)Ìý

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Chapter 1 lecture about sciecnce
Chapter 1 lecture about sciecnceChapter 1 lecture about sciecnce
Chapter 1 lecture about sciecnce
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Chapter 9 atoms and the periodic table
Chapter 9 atoms and the periodic tableChapter 9 atoms and the periodic table
Chapter 9 atoms and the periodic table
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Ch11 lecture outline
Ch11 lecture outlineCh11 lecture outline
Ch11 lecture outline
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