Объяснение:
Fe(OH)2 -> FeO + H2O
NaOH + HCl = NaCl + H2O
CaO + H2O = Ca(OH)2
CaCO3 -> CaO + CO2
Fe(OH)2 + 2HCl = FeCl2 + 2H2O
FeCl3 + 3NaOH = Fe(OH)3 + 3NaCl
Zn + 2HCl = ZnCl2 + H2
Ba + 2HCl = BaCl2 = H2
Mg + 2HCl = MgCl2 + H2
