Chapter 2:

4th ed:                    15, 37, 40, 42, 43, 46, 49

(those with the 3rd ed: 15, 38, 41, 42, 43, 47, 50)

Due on Friday, September 10th

Specific Notes:

2.46: oxygen = O₂. Also, there are 2 ways to do this problem, trivial and easy. Try both if you can.