$CH_3COOH+NaOH\to CH_3COONa+H_2O$
$2CH_3COOH+Zn\to (CH_3COO)_2Zn+ H_2$
$2CH_3COOH+Mg\to (CH_3COO)_2Mg+H_2$
$2CH_3COOH+CuO\to (CH_3COO)_2Cu+H_2O$
$CH_3COOH+C_2H_5OH\buildrel{{H_2SO_4, t^o}}\over\rightleftharpoons CH_3COOC_2H_5+H_2O$
$6CH_3COOH+Al_2O_3\to 2(CH_3COO)_3Al+ 3H_2O$