Mg + 2 HCl => MgCl2 + H2↑Mg + 2 H2O => Mg(OH)2 + H2↑Ba(OH)2 + 2 HCl => BaCl2 + 2 H2O 2 HCl + Cu(OH)2 => CuCl2 + 2 H2O 2 HCl + CaO => CaCl2 + H2O CaO + H2O => Ca(OH)2
Mg + 2 HCl => MgCl2 + H2↑
Mg + 2 H2O => Mg(OH)2 + H2↑
Ba(OH)2 + 2 HCl => BaCl2 + 2 H2O
2 HCl + Cu(OH)2 => CuCl2 + 2 H2O
2 HCl + CaO => CaCl2 + H2O
CaO + H2O => Ca(OH)2