Ethane, with the chemical formula c2h6, is an example of

an isotope
a hydrocarbon
a gasoline
a kind of coal

The correct answer is a hydrocarbon.

Hydrocarbons are the class of organic compounds, which are entirely  made up of Hydrogen and Carbon. Ethane is a saturated hydrocarbon.

As the chemical formula of ethane is C2H6. This indicates that it has two carbon and six hydrogen atoms in it.

Thus, ethane ( C2H6) is an example of hydrocarbon.

answer; i believe that the correct answer is (light);

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.