Ionic Compound: A type of chemical compound made up of ions held together by ionic bonding. Example includes sodium chloride (NaCl), where sodium (Na) gives up one electron to chlorine (Cl) forming positively charged Na+ and negatively charged Cl- ions.
Ammonia (NH3): A colorless gas with a characteristic pungent smell. It's used in the manufacture of fertilizers, explosives and polymers.
Hydrolysis: A chemical reaction in which water is used to break down a compound. This process can change the pH of a solution, like when lithium nitride reacts with water to form lithium hydroxide (a base) and ammonia.