Реакции в ионом в виде hcoona+h2o nabr+h2o

HCOOH + NAOH = HCOONa + H2O

NaBr + H2O = NaOH + HBr

Na(+) +Br(-) +h2O=Na(+) +OH(-)+H(+) +Br(-)

H2O=OH(-) +H(+)

HCOOH + NAOH = HCOONa + H2O

NaBr + H2O = NaOH + HBr

Na+ +Br- +h2O=Na+ +OH- +H+ +Br-

H2O=OH- +H+