Odpowiedź :
2C2H5COOH+Mg--->(C2H5COO)2Mg+H2
2C2H5COO- +2H+ +Mg --->2C2H5COO- +Mg2+ +H2
2H+ +Mg --->Mg2+ +H2
HCOOH+KOH--->HCOOK+H2O
HCOO- +H+ +K+ +OH- --->HCOO- +K+ +H2O
H+ +OH- --->H2O
C17H35COOH+NaOH--->C17H35COONa+H2O
C17H35COOH+Na+ +OH- --->C17H35COO- +Na+ +H2O
C17H35COOH +OH- --->C17H35COO- +H2O