Respuesta :

Answer:

1:2.

Explanation:

  • For the balanced reaction:

H₂(g) + Cl₂(g) → 2HCl(g),

1.0 mole of H₂(g) reacts with 1.0 mole of Cl₂(g) to produce 2.0 moles HCl(g),

∴ The ratio of chlorine (Cl₂(g)) to hydrogen chloride (HCl(g)) is 1:2.