c2h4-c2h5cl-c2h5oh-c2h5-o-c2h5-co2-caco3

C₂H₄ + HCl ----> C₂H₅Cl
C₂H₅Cl + NaOH (р-р) ---> C₂H₅OH + NaCl
C₂H₅OH + C₂H₅OH ---> C₂H₅-O-C₂H₅ + H₂O (Kt=H₂SO₄(к), t)
C₂H₅-O-C₂H₅ + 6O₂ ---> 4CO₂ + 5H₂O
CO₂ + Ca(OH)₂ --> CaCO₃ + H₂O