Given the silver oxide button cell:
Zn(OH)42-/Zn and Ag2O/Ag
The zinc is oxidised in a basic medium.
Write the equations of the reactions at the electrodes!
A natural reaction takes place between the strongest reducing agent Zn and the strongest oxidising agent Ag2O:
Ag2O+H2O+2e-
2Ag+2OH-
Zn+4 OH-Zn(OH)42-+2e-