We're being asked to determine the coefficient of water in the balanced redox acidic reaction of :
MnO4-(aq) + H2C2O4(aq) → Mn2+(aq) + CO2 (g)
A redox reaction can be balanced (in acidic solution) by these steps:
Step 1: Separate the whole reaction into two half-reactions.
Step 2: Balance the non-hydrogen and non-oxygen elements first.
Step 3: Balance oxygen by adding H2O to the side that needs oxygen. (1 O: 1 H2O)
Step 4: Balance hydrogen by adding H+ to the side that needs hydrogen. (1 H: 1 H+)
Balance the following equation in acidic solution using the lowest possible integers and give the coefficient of water.
MnO4-(aq) + H2C2O4(aq) → Mn2+(aq) + CO2(g)
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