Ответ:

Объяснение:

HCOH + H2 → CH3OH

CH3OH + HCl → CH3Cl + H2O

2CH3Cl + 2Na → C2H6 + 2NaCl

C2H6 + Cl → C2H5Cl + HCl

C2H5Cl + KOH(вод.) → C2H5OH + KCl

C2H5OH + СuO → CH3COH + Cu + H2O

CH3COH + 2Cu(OH)2 → CH3COOH + Cu2O + 2H2O