Question: what hydrocarbon compounds are gases liquids?
Answer: Hydrocarbon gas liquids have many uses. ... 
Propane is used as a fuel and is used to make chemicals. ... 
Ethane is mainly used to produce ethylene, a feedstock to make plastics. ... 
Butanes: normal butane and isobutane are mostly used as blending stocks for gasoline. ... 
Natural gasoline is used in fuels and in oil transportation.