# Chapter 4 - Reactions in Aqueous Solutions - Questions & Problems - Page 160: 4.30

#### Work Step by Step

We know that a. $NH_3$ is a weak base. b. $H_3PO_4$ is a weak acid. c. $LiOH$ is a strong base. d. $HCOOH$ is a weak acid. e. $H_2SO_4$ is a strong acid. f. $HF$ is a weak acid. g. $Ba(OH)_2$ is a strong base.

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