For no−2 , enter an equation that shows how the anion acts as a base

for no−2 , enter an equation that shows how the anion acts as a base.

For NO2-, enter an equation that shows how the anion acts as a base

Answer:
When the NO2- anion (nitrite ion) acts as a base, it typically accepts a proton (H+) to form the weak acid, nitrous acid (HNO2). The equation representing this reaction can be written as follows:

NO_{2}^{-} + H_{2}O \rightleftharpoons HNO_{2} + OH^{-}

In this equation, the nitrite ion (NO2-) acts as a base by accepting a proton from a water molecule, resulting in the formation of nitrous acid (HNO2) and hydroxide ion (OH-). This process demonstrates the basic behavior of the nitrite ion.