2CH3COOH + CuO = (CH3COO)2Cu + H2O

2CH3COO(-) + 2H(+) + CuO = 2CH3COO(-) + Cu(2+) + H2O

2H(+) + CuO = Cu(2+) + H2O

2C15H31COOK + Ca(NO3)2 = (C15H31COO)2Ca + 2KNO3

2C15H31COO(-) + 2K + Ca(2+) + 2NO3(-) = (CH3COO)2Ca + 2K(+) + 2NO3(-)

2C15H31COO(-) + Ca(2+) = (CH3COO)2Ca

2CH3COOH + Ca(OH)2 = (CH3COO)2Ca + 2H2O

2CH3COO(-) + 2H(+) + Ca(2+) + 2OH(-) = 2CH3COO(-) + Ca(2+) + 2H2O

H(+) + OH(-) = H2O