Write down the anode reaction, cathode reaction, and overall reaction of a hydrogen fuel cell.

Anode: 2H2 (g) + 4OH– (aq) –> 4H2O (l)+ 4e–

Cathode: O2(g) + 2H2O (l) + 4e– –> 4OH– (aq)

Overall: 2H2(g) + O2(g) –> 2H2O (l)