Given the following half-reactions, 2IO₃−(aq) + 12H⁺(aq) + 10e− → I₂(s) + 6H₂O(l)
Fe²⁺(aq) → Fe³⁺(aq) + e− Write the balanced overall reaction.

Question

Given the following half-reactions, 2IO₃−(aq)+ 12H⁺(aq)+ 10e− → I₂(s)+ 6H₂O(l) Fe²⁺(aq)→ Fe³⁺(aq)+ e− Write the balanced overall reaction.

Quizplus · Accepted Answer

To balance the overall reaction, the number of electrons lost in the oxidation half-reaction must equal the number gained in the reduction half-reaction. The first half-reaction requires 10 electrons to proceed, and the second half-reaction provides 1 electron. Therefore, the second reaction must occur 10 times for each occurrence of the first reaction to balance the electrons, leading to choice E as the correct balanced overall reaction.

Given the Following Half-Reactions, 2IO3−(aq)+ 12H+(aq)+ 10e− → I2(s)+ 6H2O(l)

Given the Following Half-Reactions, 2IO₃−(aq)+ 12H⁺(aq)+ 10e− → I₂(s)+ 6H₂O(l)