1. NaCl + H2SO4к = NaHSO4 + HCl
H2 + Cl2 = 2HCl
H2S + Cl2 = S + 2HCl
2. CuO + 2HCl = CuCl2 + H2O
Cu + Cl2 = CuCl2
Cu + 2HCl = CuCl2 + H2
CuS + Cl2 = CuCl2 + S
Cu(OH)2 + 2HCl = CuCl2 + 2H2O
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Verified answer
1. NaCl + H2SO4к = NaHSO4 + HCl
H2 + Cl2 = 2HCl
H2S + Cl2 = S + 2HCl
2. CuO + 2HCl = CuCl2 + H2O
Cu + Cl2 = CuCl2
Cu + 2HCl = CuCl2 + H2
CuS + Cl2 = CuCl2 + S
Cu(OH)2 + 2HCl = CuCl2 + 2H2O