Consider the half reaction, S-2→H+SO4-2. The number of H+ ions in the balanced half reaction are

Consider the half reaction, $S^{- 2} \overset{H^{+}}{\to} {SO}_{4}^{- 2}$ . The number of $H^{+}$ ions in the balanced half reaction are

$S^{- 2} + 4 H_{2} O \to {SO}_{4}^{- 2}; S^{- 2} + 4 H_{2} O \to {SO}_{4}^{- 2} + 8 H^{+}; S^{- 2} + 4 H_{2} O \to {SO}_{4}^{- 2} + 8 H^{+} + 8 e;$

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