Answer
$S_{2}O_{3}^{2-} (aq) + 4Cl_{2}(g) + 5H_{2}O→ 2SO_{4}^{2-} (aq) + 8Cl^{-} (aq) + 10H^{+}(aq)$
Work Step by Step
The reaction tales place in an acidic medium. We add water on left hand side and H+ ions to right hand side.
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