Hydrocarbons are organic compounds made of carbon and hydrogen. Carbon's ability to form various bonds and structures leads to diverse hydrocarbon combinations. Simple hydrocarbons like methane, ethane, and propane are found in fossil fuels and are key energy sources.

What elements are organic compounds composed of?

• Hydrogen and nitrogen

• Oxygen and nitrogen

• Carbon and hydrogen

• Carbon and oxygen

What allows carbon atoms to form a wide variety of structures?

• Their ability to form single bonds

• Their ability to form double and triple bonds

• Their ability to form ionic bonds

• Their ability to form hydrogen bonds

Which of the following is NOT a simple hydrocarbon molecule?

• Methane

• Ethane

• Butane

• Propane

Where are hydrocarbons commonly found?

• In the earth's crust

• In the ocean

• In the atmosphere

• In fossil fuel deposits

What is a major use of hydrocarbons?

• As a building material

• As a food source

• As a source of energy

• As a cleaning agent