Physical and chemical properties Ammonia is classified as an alkaline gas due to its ability to neutralize acids. It is lighter than air with a molecular weight of 17.031 g/mol. Ammonia readily dissolves in water to form an alkaline solution. The ammonia molecule is pyramidal in shape due to the unshared pair of electrons on the nitrogen atom. Ammonia has a boiling point of -33°C a... https://cmiprashant.hashnode.dev/ammonia-a-widely-used-chemical-with-both-benefits-and-risks