CH3-CH2-COOH=CH3-CH2-COO(-)+H(+)
2CH3-CH2-COOH+Mg=(CH3-CH2-COO)2Mg+H2
CH3-CH2-COOH+Na2CO3=2CH3-CH2COONa+CO2+H2O
CH3-CH2-COOH+NaOH=CH3-CH2-COONa+H2O
2CH3-CH2-COOH+Na2O=2CH3-CH2-COONa+H2O
ZnO+2CH3-CH2-COOH=(CH3-CH2-COO)2Zn+H2O
CH3-CH2-COOH+CH3OH=CH3-CH2-COOCH3+H2O