Task 1.5d.2 combining half equations

Combine the following half equations to give balanced ionic redox equations:

(a)  iron II and chlorine
Fe²⁺(aq) ----> Fe³⁺(aq) + e^-
Cl₂(aq) + 2e- -----> 2Cl^-(aq)

(b) manganate VII and iron II
MnO₄^-(aq) + 8H⁺ 5e^- -----> Mn²⁺(aq) 4H₂O(l)
Fe²⁺(aq) ----> Fe³⁺(aq) + e^-

(c) dichromate VI and ethanedioate
Cr₂O₇^2-(aq) + 14H⁺(aq) +6e^- -----> 2Cr³⁺(aq) +7H₂O(l)
C₂O₄^2-(aq) -----> 2CO₂(g) + 2e^-

(d) iodine and thiosulphate
2S₂O₃^2-(aq) -----> S₄O₆^2-(aq) + 2e^-
I₂(aq) + 2e^- ----->  2I^-(aq)

(e) iodate and iodide
2IO₃^-(aq) + 12H⁺(aq) + 10e^- -----> I₂(aq) + 6H₂O(l)
2I^-(aq) -----> I₂(aq) + 2e^-