Posted by **Keisha** on Tuesday, February 14, 2012 at 5:50pm.

Guys i really need help in these three problems. If someone could explain how to do this i would appreciate it!

complete and balance the following equations

1. SO3^2- + Cu^2+ --> SO4^2- + Cu^+

2. Cr +Cu^2+ ---> CrO4^2- + Cu^+

3. MnO2 + Ag^+ ---> MnO4^- + Ag

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