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Grade: 12th pass 
        
Balance the following equation by oxidation number method.Please give the steps also.
Fe2+ (aq) +Cr2O72-(aq) -----> Fe3+(aq) +Cr3+ (aq).
one year ago

Answers : (1)

Arun
24510 Points 
							
Fe2+ goes from +2 to +3 
Cr goes from +6 to +3 
The balanced equation is 
6 Fe2+ + Cr2O72- + 14 H+ --> 6 Fe3+ + 2Cr3+ + 7H2O
one year ago
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