Помогите пожалуйста HOOC-COOH+NaOH----->
HOOC-COOH+2NaOH = NaOOC-COONa + 2H2O
избыт
HOOC-COOH+NaOH = HOOC-COONa + H2O
недост
HOOC-COOH+NAOH=HOOC-COONA+H2O