2 MnO4- + 5 H2O2 + 6 H3O+ → 2 [Mn(H2O)6]2+ + 5 O2 + 2 H2O
This is a complexation reaction: [Mn(H2O)6]2+ is the formed complex.
This is an oxidation-reduction (redox) reaction:
2 MnVII + 10 e- → 2 MnII (reduction)
10 O-I - 10 e- → 10 O0 (oxidation)
MnO4- is an oxidizing agent, H2O2 is a reducing agent.