(NH4)2Cr2O7 → 2 N + Cr2O3 + 4 H2O
This is an oxidation-reduction (redox) reaction:
2 N-III - 6 e- → 2 N0 (oxidation)
2 CrVI + 6 e- → 2 CrIII (reduction)
(NH4)2Cr2O7 is a reducing agent, (NH4)2Cr2O7 is an oxidizing agent.
Warning: Unknown compound 'N'