_kl + _cl2 = _kcl + _l2

2 KI + Cl₂ → 2 KCl + I₂

Explanation:

Given equation is

KI + Cl₂ → KCl + I₂

We have to balance the equation by equating the number of each atom on both sides of the equation.

Since we have 2 Cl atoms on LHS, we need to put 2 in front of KCl.

So the equation becomes,

KI + Cl₂ → 2 KCl + I₂

Now, we have 2 K- atoms on RHS, so we have to put 2 in front of KI, and so number of K atoms on both sides of the equation, and so all the atoms on both sides of the equation gets balanced as,

2 KI + Cl₂ → 2 KCl + I₂

beta decay is the answer

i think that the answer is c