NaOH + CuCl2 = Cu$OH$2 + NaCl
NaOH + AlCl3 = Al$OH$3 + NaCl
NaOH + Zn$NO3$2 = Zn$OH$2 + NaNO3
NaOH + MnSO4 = Mn$OH$2 + Na2SO4
NaOH + CrCl3 = Cr$OH$3 + NaCl
NaOH + FeSO4 = Fe$OH$2 + Na2SO4
KOH + CuSO4 = Cu$OH$2 + K2SO4
KOH + Al2$SO4$3 = Al$OH$3 + K2SO4
KOH + ZnCl2 = Zn$OH$2 + KCl
KOH + MnCl2 = Mn$OH$2 + KCl
KOH + Cr2$SO4$3 = Cr$OH$3 + K2SO4
KOH + FeCl2 = Fe$OH$2 + KCl

Эти реакции можно отнести к реакциям нейтрализации.