4 iron(III) oxide-hydroxide + 12 H(+) => 4 Fe(2+) + O2 + 6 H2O
4 iron(iii) oxide-hydroxide + 12 h(+) => 4 fe(2+) + o2 + 6 h2o
4 iron(III) oxide-hydroxide + 12 H(+) => 4 Fe(2+) + O2 + 6 H2O
4 iron(iii) oxide-hydroxide + 12 h(+) => 4 fe(2+) + o2 + 6 h2o