Question

9
multiple choice 10 points
when naming an acid with a polyatomic, that -ate ending of the polyatomic changes to a/an ________ ending?
-ous
-ic
none of the above
-ide

Explanation:

When naming an acid formed from a polyatomic ion with an -ate ending, the -ate changes to -ic. For example, sulfate ($\text{SO}_{4}^{2 - }$) forms sulfuric acid ($\text{H}_{2}\text{SO}_{4}$). The -ous ending is for polyatomic ions with -ite endings (e.g., sulfite $\text{SO}_{3}^{2 - }$ forms sulfurous acid $\text{H}_{2}\text{SO}_{3}$), and -ide is for binary acids (e.g., chloride $\text{Cl}^{-}$ forms hydrochloric acid $\text{HCl}$).

Answer:

B. -ic