7C3H5(NO3)3 is an interesting, multi-purpose chemical compound. Nitroglycerin, also called nitro, is a heavy, colorless, poisonous, oily explosive. As a prescribed drug, it
helps relax and dilate blood vessels and is often used in treating chest pain. It is also
used in the manufacture of explosives, specifically dynamite, and is frequently used in
construction and demolition projects. How many atoms of oxygen are in a molecule
of nitroglycerin?