2 AgNO3 (aq) + 3 H2O2 (aq) + 2 KOH (aq) → 2 Ag (s) + 2 KNO2 (aq) + 3 O2 (g) + 4 H2O (l)
This is an oxidation-reduction (redox) reaction:
2 AgI + 2 e- → 2 Ag0 (reduction)
2 NV + 4 e- → 2 NIII (reduction)
6 O-I - 6 e- → 6 O0 (oxidation)
AgNO3 is an oxidizing agent, AgNO3 is an oxidizing agent, H2O2 is a reducing agent.
This is a precipitation reaction: Ag is the formed precipitate.
This is a gas evolution reaction, O2 is the formed gas.