Verified answer

Ответ:

C₂H₄ + H₂O ---> C₂H₅OH

C₂H₅OH + CuO ---> CH₃-COH + Cu + H₂O

CH₃-COH + Ag₂O ---> CH₃-COOH + 2Ag (NH₃,t)

CH₃-COOH  + CH₃OH --> CH₃-COOCH₃ + H₂O (t, H₂SO₄)

CH₃-COOCH₃  + H₂O ---> CH₃-COOH  + CH₃OH (t, KOH)