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2 CH3-CH2-COOH+Ba->Ba (CH3CH2COO) 2 CH3-CH2-COOH+MgO->Mg (CH3-CH2-COO) 2+H2O CH3-CH2-COOH+KOH->CH3 CH2 CH2COOH+CaO CH3-CH2-COOH+CaCO3-> (CH3CH2COO) 2Ca+H2O+CO2. CH3-CH2-COOH+NH3->CH3CH2COOHNH3.