Balance the unbalanced redox reaction?

Question

Show the half-reactions and the complete balanced reaction

MnO4-  +  H2O2   --> Mn+2  +  O2  +  H+

Answer 1

half-reqctions:

MnO4^- ---> Mn^2+

H2O2 ---> O2

balance half-reactions:

5e^- + 8H^+ + MnO4^- ---> Mn^2+ + 4H2OH2O2 ---> O2 + 2H^+ + 2e^-

equalize electrons:

10e^- + 16H^+ + 2MnO4^- ---> 2Mn^2+ + 8H2O5H2O2 ---> 5O2 + 10H^+ + 10e^-

add:

6H^+ + 5H2O2 + 2MnO4^- ---> 2Mn^2+ + 5O2 + 8H2O

You can also do a search. Copy the reactants and the reaction arrow and search. You'll get a number of websites that balance the equation.

https://www.google.com/search?client=firefox-b-1-d...