Which reaction represents the process of neutralization? Mg(s)+2HCl(aq) MgCl 2 (aq)+H 2 (g) HCl(aq)+KOH(aq) KCl(aq)+H 2 O(l) C. Pb(NO 3 ) 2 (aq)+CaCl 2 (aq) Ca(NO 3 ) 2 (aq)+PbCl 2 (s) D. 2KClO 3 (s) 2KCl(s)+3O 2 (g)