Cr2O7 2- I- ? Cr3 IO3- (acidic)

1
Cr2O7 2- I- ? Cr3 IO3-
(acidic)
4
8
Cr2O7 2- ? Cr3

2
14H
6e-
7H2O
I- ?
IO3-
6e-
6H
3H2O
Cr2O72- I1- 8H ? 2Cr3 IO31-
4H2O
1. Balance the non H and non O atoms first.
2. Balance the O atoms with H2O.
3. Balance the H atoms with H
4. Add e-s to balance the charges on both sides.
5. Use multiplier, if necessary to cancel
electrons for both equations.
6. Cancel common terms and combine equations.