An alkane is a type of hydrocarbon, meaning it is made up of only carbon (C) and hydrogen (H) atoms.

Here are some examples of alkanes:

* Methane (CH4) - the simplest alkane

* Ethane (C2H6)

* Propane (C3H8)

* Butane (C4H10)

* Pentane (C5H12)

The general formula for alkanes is CnH2n+2, where 'n' represents the number of carbon atoms in the molecule.