Question

How many electrons are transferred in the following, unbalanced, redox reaction? Cl2(aq) + Kl(aq) => KCl(aq) + l2(aq)?

Answer 1

Two electrons are transferred in this reaction.

Explanation:

The question cites the equation is unbalanced.

`Cl_2(aq) + 2Kl(aq) to 2KCl(aq) + I_2(aq)`

The oxidation state of pure elements (e.g. chlorine and iodine) are 0. We may deduce that since potassium has a `1+` charge:

`Cl_2` is reduced to `1-` charge, and concomitantly `I^-` is oxidized to `0` charge from `1-` charge.