Em tham khảo nha :
\(\begin{array}{l}
3{C_3}{H_7}OH + 2{K_2}Cr{O_7} + 8{H_2}S{O_4} \to 3{C_2}{H_5}COOH + 2{K_2}S{O_4} + 2C{r_2}{(S{O_4})_3} + 11{H_2}O\\
{C_2}{H_5}COOH + NaOH \to {C_2}{H_5}COONa + {H_2}O\\
2{C_2}{H_5}COOH + Ca{(OH)_2} \to {({C_2}{H_5}COO)_2}Ca + 2{H_2}O
\end{array}\)