taylorn4444 taylorn4444 19-10-2022 Chemistry Answered The reaction of magnesium with hydrochloric acid produces hydrogen gas. Mg(s) + 2HCl(aq) → H₂ (g) + MgCl₂ (aq) - If you react 0.127 g of Mg with excess acid, how many moles of hydrogen molecules will be produced?