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

Nov 23, 2017

Two electrons are transferred in this reaction.

#### Explanation:

The question cites the equation is unbalanced.

$C {l}_{2} \left(a q\right) + 2 K l \left(a q\right) \to 2 K C l \left(a q\right) + {I}_{2} \left(a q\right)$

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

$C {l}_{2}$ is reduced to $1 -$ charge, and concomitantly ${I}^{-}$ is oxidized to $0$ charge from $1 -$ charge.