Thiosulfate ion, S₂O₃^2-, is a reducing agent that can be oxidized to different products, depending on the strength of the oxidizing agent and other conditions. By adding H⁺, H₂O, and/or OH^- as necessary, write redox equations to show the oxidation of to

(a) S₄O₆^2- by I₂ (iodide ion is another product)

(b) HSO₄^- by Cl₂ (chloride ion is another product)

(c) SO₄^2- by OCl^- in basic solution (chloride ion is another product).