Ответ:

Объяснение:

CaCO3 -> CaO + CO2

CaO + 3C = CaC2 + CO

CaC2 + 2H2O = Ca(OH)2 + CH=-CH

CH=-CH + H2O -> CH3COH (t,Hg)

CH3COH + Ag2O -> CH3COOH + 2Ag ( NH3)

CH3COOH + C2H5OH -> CH3COOC2H5 + H2O