Answer: salt
Explanation:
Arrhenius acids are substances which dissociate in water to give [tex]H^+[/tex] ions.
[tex]HCl\rightarrow H^++Cl^-[/tex]
Arrhenius bases are substances which dissociate in water to give [tex]OH^-[/tex] ions.
[tex]NaOH\rightarrow Na^++OH^-[/tex]
Thus when they combine, they neutralize each other and produce salt and water.
[tex]HCl+NaOH\rightarrow NaCl+H_2O[/tex]