PO43-+H2O HPO4-+OH-
Na3PO4+H2O Na2HPO4+NaOH
14.Na3PO4
HCO3-+H2O H2CO3+OH-
NaHCO3+H2O H2CO3+NaOH
13.NaHCO3
Zn2++2H2O Zn(OH)2+2H+
ZnCl2+2H2O Zn(OH)2+2HCl
12.ZnCl2
Cu2++2H2O Cu(OH)2+2H+