Balance the following equations. (Use the lowest possible whole-number coefficients. These may be zero.) (a) ClO3-aq) + As(s) Æ HClO(aq) + H3AsO3(aq) ClO3- + As + H+ + H2O HClO + H3AsO3 + H+ + H2O (b) Fe(CN)63-(aq) + N2H5+(aq) Fe(CN)64-(aq) + N2(g) Fe(CN)63- + N2H5+ + H+ + H2O Fe(CN)64- + N2 + H+ + H2O (c) Cl2O7(aq) + C2O42-(aq) Cl-(aq) + CO2(g) Cl2O7 + C2O42- + OH- + H2O Cl- + CO2 + OH- + H2O (d) Cl2O7(aq) + H2O2(aq) ClO2-(aq) + O2(g) Cl2O7 + H2O2 + OH- + H2O ClO2- + O2 + OH- + H2O