Ответ:
1) CH3-CH2-CH2-OH --->( Cu, температура) --> CH3-CH2-COH + H2 (газ)
2) CH3-CH2-COH + 2Cu(OH)2 --> (t)--> CH3-CH2-COOH + Cu2O(осадок) + 2H2O
3) CH3-CH2-COOH + C3H7OH --->(H2SO4)--> CH3-CH2-COOC3H7 + H2O
4) CH3-CH2-COOC3H7 + H2O ---> CH3-CH2-COOH + C3H7OH