Mr. Tran's Chemistry Class
Tuesday, February 10, 2009
Answers to Selected Questions from "Writing Chemical Equations"
1. 2Cu + O
2
→ 2CuO
3. (NH
4
)
2
CO
3
→ 2NH
3
+ CO
2
(g) + H
2
O
5. Ca + 2H
2
O → Ca(OH)
2
+ H
2
7. 4Cu + O
2
→ 2Cu
2
O
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