Write a net ionic equation to show that acetylsalicylic acid (aspirin), hc9h7o4, behaves as a brønsted-lowry acid in water.

Balanced chemical reaction of aspirin in water:

HC₉H₇O₄ (aq) + H₂O (l) ⇄ C₉H₇O₄⁻ (aq) + H₃O⁺ (aq).

In this chemical reaction aspirin (HC₉H₇O₄) is an acid because it donates a proton (H⁺) to water and becomes its conjugate base (C₉H₇O₄⁻) and water is a base because it accepts a proton from aspirin and becomes its conjugate acid, the hydronium ion, (H ₃O⁺).