* Identify the products: The products are the substances on the right side of the equation: 2AlCl3 and 3H2.
* Focus on the product containing chlorine: The only product containing chlorine is AlCl3.
* Count chlorine atoms per molecule: Each molecule of AlCl3 has 3 chlorine atoms.
* Multiply by the coefficient: The coefficient in front of AlCl3 is 2, indicating two molecules of AlCl3.
* Calculate total chlorine atoms: 3 chlorine atoms/molecule * 2 molecules = 6 chlorine atoms
Therefore, there are 6 chlorine atoms on the products side of the reaction.
