The balanced chemical equation for the reaction of chlorine (Cl₂) with potassium iodide (KI) to form potassium chloride (KCl) and iodine (I₂) is:

Cl₂ + 2KI → 2KCl + I₂

Here's the breakdown:

* Cl₂: Chlorine gas is a diatomic molecule.

* 2KI: Two molecules of potassium iodide are needed to balance the equation.

* 2KCl: Two molecules of potassium chloride are produced.

* I₂: Iodine is also a diatomic molecule.

Explanation:

This reaction is a single displacement reaction. Chlorine is more reactive than iodine, so it displaces iodine from potassium iodide.