When the following oxidation–reduction reaction in basic solution is balanced, what is the lowest whole-number coefficient...
When the following oxidation–reduction reaction in basic solution is balanced, what is the lowest whole-number coefficient for OH–, and on which side of the balanced equation should it appear?
Cr2O3(s) → Cr(OH)2(aq) + CrO42–(aq)
|
a. |
2, reactant side |
|
|
b. |
10, product side |
|
|
c. |
4, product side |
|
|
d. |
4, reactant side |
|
|
e. |
2, product side |
The answer is a, but I dont know how to get to the answer.
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