Here's why:
* Structure: Waxes are long-chain fatty acids (hydrocarbons with a carboxylic acid group) that are esterified with long-chain alcohols. These chains are primarily made up of carbon and hydrogen atoms.
* Oxygen Role: While oxygen is present in the ester linkage that connects the fatty acid and alcohol, its presence is relatively small compared to the number of carbon and hydrogen atoms.
* Examples: Common waxes like beeswax, paraffin wax, and carnauba wax are primarily composed of hydrocarbons, with very limited oxygen content.
Therefore, waxes are not known for containing a lot of oxygen.