What is the difference between ammonia and ammonium

1.	What is the difference between ammonia and ammonium
Answer» Ammonia is a covalent compound while ammonium is a coordinate covalent compound Ammonia is a compound. Ammonium is an ion (a cation). Ammonia is a molecule consisting of nitrogen and hydrogen having molecular NH3.while ammonium is an ion of ammonia or conjugate acid of ammonia that is formed by accepting hydrogen ion having chemical formula NH4+.

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