Here's how we arrive at that name:
* The longest carbon chain: The molecule has 8 carbon atoms in a straight chain.
* Prefix for the number of carbons: The prefix for 8 carbons is "oct-".
* Suffix for alkane: Since all the carbon atoms are bonded to hydrogen atoms with single bonds, it's an alkane, so the suffix is "-ane".
Therefore, the chemical name is octane.
