Home » ⭐️ Chemistry » The equation below shows the reaction of zinc with hydrochloric acid (HCl). Zn (s) + 2 HCl (aq) - > ZnCl2 (aq) + H2 (g) What will happen if the concentration of HCl is decreased? A. More ZnCl2 will be produced. B. The reaction rate will slow down. C.