Question

№1.
1) K3PO4 =
2)Ba(NO3)2 =
№2.
1) KOH + HCI =
2)CuNO3 + NaOH =
3)KCO3 + H3PO4 = 
№3.
1)Zn2+ +S2- =ZnS↓

Answer 1

1) KCl + H2O
2) CuOH + NaNO3
3) 2K3PO4 + 3H2CO3

ZnSo4 + Na2s = Na2SO4 + ZnS