Chemical compound refers to a substance formed by the chemical combination of two or more elements in definite proportions.
The IUPAC nomenclature provides systematic names for chemical compounds.
Common chemical terms include:
1. Catalyst - a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
2. Polymer - a substance composed of macromolecules
3. Isomer - compounds with the same molecular formula but different structural arrangements