Ammonia is made up of simple covalent molecules, $\text{NH}_3$. It may react with suitable reagents to produce substances that contain ammonium ions, $\text{NH}_4^+$. It can also react with suitable reagents to produce substances that contain amide ions, $\text{NH}_2^-$. Which of these nitrogen-containing species are found in an aqueous solution of ammonia?
- Aammonia molecules and amide ions only
- Bammonia molecules and ammonium ions only
- Cammonia molecules only
- Dammonium ions only