Answer:
Basic
Explanation:
[tex]Sodium\ Fluoride\ +\ Water = Hydrogen\ Fluoride +\ Sodium\ Hydroxide[/tex]
[tex]NaF + H_{2}O\rightarrow HF + NaOH[/tex]
Sodium fluoride, NaF, is a soluble salt that dissociates completely in aqueous solution to give sodium cations, Na+, and fluoride anions, F-
[tex]NaF\rightarrow Na^{+} +F^{-}[/tex]
and when it dissolve in water the pH of the solution becomes greater than seven thereby becoming basic.
