contestada

Which combination will produce a precipitate?
A) Naf (aq) and HCl (aq)
B) KOH (aq) and Mg(NO3)2 (aq)
C) NaOH (aq) and HCI (aq)
D) NaC2H302 (aq) and HCl (aq)
E) AgNO3(aq) and Ca(C2H302)2 (aq)