Cu(OH)2 + 2HCl = CuCl2 + 2H2O
Mg + 2HCl = MgCl2 + H2
ZnO + 2HCl = ZnCl2 + H2O
Ba(OH)2 + 2HCl = BaCl2 + 2H2O
AgNO3 + HCl = HNO3 + AgCl (осадок)
Na2S + 2HCl = 2NaCl + H2S (газ)
ОТВЕТ: 1 и 3.
Cu(OH)2 + 2HCl = CuCl2 + 2H2O
Mg + 2HCl = MgCl2 + H2
ZnO + 2HCl = ZnCl2 + H2O
Ba(OH)2 + 2HCl = BaCl2 + 2H2O
AgNO3 + HCl = HNO3 + AgCl (осадок)
Na2S + 2HCl = 2NaCl + H2S (газ)
ОТВЕТ: 1 и 3.