Question

highlight and name the polyatomic ion in each ionic compound shown below:

Explanation:

For \(Ca(NO_{3})_{2}\), the polyatomic ion is \(NO_{3}^{-}\) (nitrate). For \(Al_{2}(SO_{4})_{3}\), the polyatomic ion is \(SO_{4}^{2 -}\) (sulfate). For \(Na_{2}CO_{3}\), the polyatomic ion is \(CO_{3}^{2 -}\) (carbonate). For \((NH_{4})_{2}S\), the polyatomic ion is \(NH_{4}^{+}\) (ammonium). For \(Sr(OH)_{2}\), the polyatomic ion is \(OH^{-}\) (hydroxide).

Answer:

Chemical Formula	Polyatomic Ion Name
\(Ca(NO_{3})_{2}\)	nitrate
\(Al_{2}(SO_{4})_{3}\)	sulfate
\(Na_{2}CO_{3}\)	carbonate
\((NH_{4})_{2}S\)	ammonium
\(Sr(OH)_{2}\)	hydroxide