Once we start to observe molecular and ionic compounds we need to come up with a system to name them. The system outlined in the videos below are the foundation of the vocabulary we use in chemistry and a knowledge of nomenclature is essential if you want to communicate with other chemists.
2.8 Nomenclature Part 1
2.8 Nomenclature Part 2
2.8 Nomenclature Part 3
2.8 Nomenclature Part 4