Question 9 (0.25 points) For reaction A, Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) what is the charge on H in HCl(aq)? 0 +2 0-2 2 0 1 For reaction A, which species is oxidized? O HCl(aq) Mg(s) O H2 (g) None of the substances listed was oxidized. MgCl2(aq) For reaction A, which species is reduced? o MgCl2(aq) OHCl(aq) None of the substances listed was oxidized. Mg(s) H2 (g) For reaction A, which species is the oxidizing agent? o Mg(s) MgCl2(aq) HCl(aq) H (g) None of the substances listed was oxidized. For reaction A, which species is the reducing agent? 0 Mg(s) O H2 (g) MgCl2(aq) HCl(aq) None of the substances listed was oxidized