Question

Balance the following redox equation and identify the element oxidized, the element reduced, the oxidizing agent, and the reducing agent. Show all of the work used to solve the problem. CN- + MnO4- yields CNO- + MnO2

Answer 1

Solution:
Mn+7O-24- + C+2N-3- → Mn+4O-22 + C+4N-3O-2-

O:C+2N-3- → C+4N-3O-2- + 2e- (C)
R:Mn+7O-24- + 3e- → Mn+4O-22 (Mn

O:C+2N-3- → C+4N-3O-2- + 2e-
R:Mn+7O-24- + 3e- → Mn+4O-22

3C+2N-3- + 2Mn+7O-24- + 6OH- + 6e- + 4H2O → 3C+4N-3O-2- + 2Mn+4O-22 + 6e- + 8OH- + 3H2O


CHECK
3*1 C 3*1
3*1 N 3*1
2*1 Mn 2*1
9 O 9
1*2 H 2*1