Complete and balance:
BrO3–(aq) + [Cr(OH)4]–(aq)
→ CrO42–(aq) + Br–(aq)
Oxidation half–reaction:
[Cr(OH)4]–(aq)
→ CrO42–(aq)
+ 4 H+(aq) + 3 e–
Cr is mass balanced
O balance
H balance
charge balance
Reduction half–reaction:
BrO3–(aq)
→ Br–(aq)
Br is mass balanced
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