Hydrogen gas(H2) and chlorine gas(CL2) react to form hydrochloric acid (HCI). What is the correct balanced chemical equation for this reaction?

is it H2 + Cl2 = 2HCl

yes

Yes, you are correct. The balanced chemical equation for the reaction between hydrogen gas (H2) and chlorine gas (Cl2) to form hydrochloric acid (HCl) is:

H2 + Cl2 → 2HCl

Yes, the correct balanced chemical equation for the reaction between hydrogen gas (H2) and chlorine gas (Cl2) to form hydrochloric acid (HCl) is:

H2 + Cl2 → 2HCl

To balance the equation, you need to make sure that the number of atoms of each element is the same on both sides of the equation. In this case, there is one hydrogen atom on each side, so it is already balanced. However, there are two chlorine atoms on the left side (Cl2) and only two on the right side (2HCl). By placing a coefficient of 2 in front of the hydrochloric acid (HCl), the equation is balanced, as there are now two chlorine atoms on both sides.

It is important to note that the law of conservation of mass requires that the total mass of the reactants (H2 and Cl2) must be equal to the total mass of the products (2HCl).