3.1 I can explain the terms homologous series, hydrocarbon, saturated, unsaturated, general formula and isomerism

Term	Definition	Example
Homologous series	Members of the same series, or family having similar chemical properties.	alkanes, alkenes
Hydrocarbon	A hydrocarbon is a compound containing only hydrogen and carbon.	crude oil, methane, ethane, propane, butane, pentane
Saturated hydrocarbon	Molecules with a  carbon carbon single bond throughout the whole structure	e.g. of Alkanes (Methane)
Unsaturated hydrocarbon	Molecule with a carbon carbon double/triple bond	e.g. of Alkenes (Ethene)
General formula	A mathematical formula to express the number of carbon and hydrogen atoms in a molecule	CnH2n+2 , CnH2n
Isomerism	Molecules having the same formula, but are structured differently.	2,2 Dimethylpropane