# Chapter 15 - Sections 15.1-15.12 - Exercises - Problems by Topic - Page 745: 33d

$HC_2H_3O_2(aq)$ is an acid according to the Arrhenius definition.

#### Work Step by Step

According to the Arrhenius definition, an acid is a substance which produces $H^+$ ions in an aqueous solution. As we can see from the below equation, $HC_2H_3O_2(aq) \rightleftharpoons H^+(aq) + C_2H_3O_2^-(aq)$ $HC_2H_3O_23$ produces $H^+$ ions in aqueous solutions. So it is an acid.

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