$2X_2 (g) + 2H_2O (l) \to 4H^+ (aq) + 4X^-(aq) + O_2 (g)$
$Y_2 (g) + H_2O (l) \to HY(aq) + HOY(aq)$
\(Cl_2 (g) + 2H_2O (l) \to HCl(aq) + HOCl\)