# Chapter 3 Chemical Reactions - Study Questions - Page 137b: 33

#### Work Step by Step

Water as a base: $HBr(aq)+H_2O(l)\leftrightarrow H_3O^+(aq)+Br^-(aq)$ Water as an acid: $NH_3(aq)+H_2O(l)\leftrightarrow NH_4^+(aq)+OH^-(aq)$

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