Chapter 9, Problem 60A

Interpretation Introduction

Interpretation: The two polyatomic anions in Table 9.3 with names that do not end in $-ite$ or $-ate$ are to be stated.

Concept Introduction: Polyatomic ions are ions that have more than one atom. While naming polyatomic ions, the name of the less electronegative element is placed first, followed by the higher electronegative element. ‘−ate’ or ‘-ite’ is used as a suffix for anions.

Answer to Problem 60A

The two polyatomic anions are cyanide $\left({\text{CN}}^{-}\right)$ and hydroxide $\left({\text{OH}}^{-}\right)$ .

Explanation of Solution

The two polyatomic anions are cyanide $\left({\text{CN}}^{-}\right)$ and hydroxide $\left({\text{OH}}^{-}\right)$ . Cyanide ion is composed of carbon and nitrogen with a -1 charge while hydroxide ion is composed of oxygen and hydrogen with -1.