Question

Hydrogen gas (H2) and chlorine gas (Cl2) react to form hydrochloric acid (HCl).

What is the correct balanced chemical equation for this reaction?

Answer 1

Hydrogen gas (H2) and chlorine gas (Cl2) react to form hydrochloric acid (HCl). The chemical reaction is written as:

H2 + Cl2 = HCl

To balance, the elements in the reactant side should be equal to the same element on the product side.

H2 + Cl2 = 2HCl