Ca (OH) 2+H3PO4=CaPO4+H2O Ca (OH) 2+HNO3=CaNO3+H2O Ca (OH) 3+H2S=CaS+H2O KOH+H2SO3=KSO+H2O KOH+H3PO4=KPO4+H2OKOH+HBr=KBr+H2O

1.=Сa3 (PO4) 2+6H2O2.=Ca (NO3) 2+2H2O3.CaS+H2O4.=K2SO3+H2O5.=K3PO4+3H2O6.=KBr+H2O7.=K3PO4+H2O8.=Cu (OH) 2 (стрелочка вниз)+K2SO4 9.=Al (OH) 3 (стрелочка вниp)+3KNO310.=Al (NO3) 3+3H2O11.=H2O+Al (So3) 312.=AlPO4+3H2O