2 (NH4)(ClO4) → N2 + Cl2 + 2 O2 + 4 H2O
This is an oxidation-reduction (redox) reaction:
2 Cl-I - 2 e- → 2 Cl0 (oxidation)
2 NV + 10 e- → 2 N0 (reduction)
4 O-II - 8 e- → 4 O0 (oxidation)
(NH4)(ClO4) is a reducing agent, (NH4)(ClO4) is an oxidizing agent, (NH4)(ClO4) is a reducing agent.