Question

Ca(OH)2+H3PO4=
KOH+H3PO4=
Ca(OH)2+H2SO4=
Cr(OH)3+HCL=
BaO+H2O
ZnO+H2O
Al(NO3)+NaOH

Answer 1

3Ca(OH)2+2H3PO4=Ca3(PO4)2+6H2O
3KOH+H3PO4=K3PO4+2H20
Ca(OH)2+H2SO4=CaSO4+ 2H2O
Cr(OH)3+HCl=CrCl3+2H2O
BaO+H2O= Ba(OH)2
ZnO+H2O= Zn(OH)2
Al(NO3)3+3NaOH=Al(OH)3+3NaNO3
Ну, вроде так :D