What are hydrocarbons made up of?

They are made from carbon and hydrogen atoms

Hydrocarbons are molecules of various lengths consisting of hydrogen and carbon atoms.

Hydrocarbons are molecules and as the name hints or suggests are made up of only Hydrogen ( from the 'Hydro bit' ) and Carbon. The simplest possible hydrocarbon is methane where one carbon atom is bonded or joined onto four hydrogen atoms. Because hydrocarbons can consist of either small, medium or large sized ( long chain ) molecules they may be found naturally occurring in all three physical states ; gases, liquids and solids.

Hydrocarbons are chemical compounds made of carbon and hydrogen atoms ONLY

Only hydrogen and carbon molecules

Hydrocarbons are molecules made up of hydrogen and carbon only linked via a covalent bond.

Hydro - hydrogen and Carbons - Carbon

Hydrogen and Carbon

Hydrocarbons are molecules that are made up of multiple hydrogen and carbon atoms arranged in a particular order to give materials like petrol, jet fuel etc.

Hydorcarbons are in its name. They are substances that only contain hydrogen and carbons

As the name indicates hydrocarbons are made of hydrogen and carbon.

Hydrocarbons are made of two elements: hydrogen and carbon.

Hydrocarbons are species that are made up of carbon and hydrogen atoms ONLY. No other element type is present.

Hydrogen and Carbon atoms only

Hydrocarbons are made up of only carbons and hydrogens