Em tham khảo nha :
\(\begin{array}{l}
1)\\
HCOOH:Axit\,formic\\
C{H_3}COOH:Axit\,axetic\\
{C_2}{H_5}COOH:Axit\,propionic\\
2)\\
HCOOH:axitmetanoic\\
C{H_3}COOH:axitet\,anoic\\
{C_2}{H_5}COOH:Axit\,propanoic\\
C{H_3} - C{H_2} - C{H_2} - COOH:Axit\,butanoic\\
\end{array}\)