Here's the balanced chemical equation for the reaction of aluminum (Al) with chlorine gas (Cl₂) to form solid aluminum chloride (AlCl₃):

2 Al (s) + 3 Cl₂ (g) → 2 AlCl₃ (s)

Explanation:

* Reactants:

* Aluminum (Al) is a solid metal.

* Chlorine (Cl₂) exists as a diatomic gas.

* Product:

* Aluminum chloride (AlCl₃) is a solid ionic compound.

Balancing the Equation:

* Aluminum (Al): We have 2 Al atoms on each side of the equation.

* Chlorine (Cl): We have 6 Cl atoms on each side of the equation.

Important Note: This reaction is highly exothermic and releases a significant amount of heat and light. It's important to handle this reaction with care and in a controlled environment.