The balanced equation for the production of hydrogen chloride (HCl) from hydrogen (H₂) and chlorine (Cl₂) is:

H₂ + Cl₂ → 2HCl

Here's what the equation shows:

* H₂: One molecule of hydrogen gas

* Cl₂: One molecule of chlorine gas

* 2HCl: Two molecules of hydrogen chloride gas

This reaction is an example of a combination reaction, where two reactants combine to form a single product.