NiSO4+2NaOH=Ni (OH) 2+Na2SO4Ni (2+)+SO4 (2-)+2Na+2OH-=Ni (OH) 2+2Na+SO4 (2-) Ni (2+)+2OH-=Ni (OH) 2 AlCl3+3NaOH=Al (OH) 3+3NaClAl (3+)+3Cl-+3Na+3OH-=Al (OH) 3+3Na+3Cl-Al (3+)+3OH-=Al (OH) 3 CuSO4+2NaOH=Cu (OH) 2+Na2SO4Cu (2+)+SO4 (2-)+2Na+2OH-=Cu (OH) 2+2Na+SO4 (2-) Cu (2+)+2OH-=Cu (OH) 2 Ni (OH) 2+2HCl=NiCl2+2H2ONi (OH) 2+2H+2Cl-=Ni (2+)+2Cl-+2H2ONi (OH) 2+2H+=Ni (2+)+2H2O Al (OH) 3+3HCl=AlCl3+3H2OAl (OH) 3+3H+3Cl-=Al (3+)+3Cl-+3H2OAl (OH) 3+3H+=Al (3+)+3H2O Cu (OH) 2+2HCl=CuCl2+2H2OCu (OH) 2+2H+2Cl-=Cu (2+)+2Cl-+2H2OCu (OH) 2+2H+=Cu (2+)+2H2O K2Cr2O7+2BaCl2+H2O=2BaCrO4+2KCl+2HCl2K+Cr2O7 (2-)+2Ba (2+)+4Cl (-)+H2O=2BaCrO4+2K+2Cl-+2H+2Cl-2K+Cr2O7 (2-)+2Ba (2+)+4Cl (-)+H2O=2BaCrO4+2H+Pb (CH3COO) 2+2KI=PbI2+2CH3COOKPb (2+)+2CH3COO-+2K+2I-=PbI2+2CH3COO-+K+Pb (2+)+2I-=PbI2 Ca (OH) 2+CO2=CaCO3+H2OCa (2+)+2OH-+CO2=CaCO3+H2O CaCO3+CO2+H2O=Ca (HCO3) 2Ca (2+)+CO3 (2-)+CO2+H2O=Ca (2+)+2HCO3 (-) CO3 (2-)+CO2+H2O=2HCO3 (-) CoCl2+NaOH=CoClOH+NaClCo (2+)+2Cl-+Na+OH-=CoClOH+Na+Cl-Co (2+)+Cl- OH-=CoClOH CoCl2+2NaOH=Co (OH) 2+2NaClCo (2+)+2Cl-+2Na+2OH-=Co (OH) 2+2Na+2Cl-Co (2+)+2OH-=Co (OH) 2 Co (OH) 2+2HCl=CoCl2+2H2OCo (OH) 2+2H+2Cl-=Co (2+)+2Cl-+2H2OCo (OH) 2+2H+=Co (2+)+2H2O 4Co (OH) 2+O2+2H2O=4Co (OH) 3 (ионов нет — ни одно из соединений не диссоциирует).
