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
