CH3-COOH - бутановая кислота (масляная)
1) 2CH3-COOH + 2Na = 2CH3-COONa + H2
2) 2CH3-COOH + CaO =(CH3-COO)2Ca + H2O
3) CH3-COOH + K2CO3 = CH3-COOK + H2O +CO2
CH3-CH2-COOH - пропановая кислота (пропионавая)
1) 2CH3-CH2-COOH + Zn = (CH3-CH2-COO)2Zn + H2
2) 2СH3-CH2-COOH + Na2O = 2CH3-CH2-COONa+H2O
3) 2CH3-CH2-COOH + CaCO3 = (CH3CH2COO)2Ca + H2O + CO2