Question

Balance this equation, and then enter the coefficients, in order, below. hcl(g)+o2(g)⇌cl2(g) + h2o(g) express your answer as integers separated by commas (e.g., 1,2,3,4), where 1 indicates the lack of a coefficient.

Answer 1

Try this explanation:
if to make up the equation of the reaction:
4HCl+O₂⇒2Cl₂+2H₂O

According to the equation the coefficients are: 4; 1; 2; 2.