1:10:13

Chem 3A - Chapter 10 Lecture Part 2

1:16:53

Chem 3A - Chapter 11 Lecture Part 2

23:14

Chem 1A - Chapter 10 Lecture Part 1

55:49

Chem 1A - Chapter 9 Part 2

52:56

AP CHEM 5.1

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Chem 1A - Chapter 11 Part 1

44:57

Chem 3A - Chapter 9 Lecture Part 5

53:36

Chem 1A - Chapter 11 Lecture Part 4