AP Chem Unit 1 Video- Section 1.2, 1.3, and 1.4

AP Chem Unit 1 Video- Section 1.2, 1.3, and 1.4

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AP Chemistry Unit 1 Sections 1.3 and 1.4
AP Chem Unit 1 Video- Section 1.2, 1.3, and 1.4