Question

Осуществите превращение: Cl2-HCl-CaCl2-HCl-Cl2

Answer 1

Cl2 + H2 = 2HCl (свет)

Ca(OH)2 + 2HCl(разб.) = CaCl2 + 2H2O

CaCl2 + H2 = CaH2 + 2HCl (600—700°C; кат. Pt)

NaClO + 2HCl(конц.) = Cl2 + NaCl + H2O

Answer 2

Cl2+2HBr=2HCl+Br2

2HCl+CaO=CaCl2+H2O

CaCl2+2H2SO4(конц.), t)= Ca(HSO4)2 +2 HCl(газ)

MnO2+4HCl=MnCl2+Cl2+2H2O

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