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level: crude oil + hydrocarbons

Questions and Answers List

Question	Answer
where is crude oil found and how is it formed	found in rocks, formed over millions of years from plankton remains found in mud
what is crude oil made up of	hydrocarbons
what is a hydrocarbon	molecules made up of hydrogen and carbon atoms only
general formula for alkanes	Cn+H2n+2
why are alkanes known as saturated molecules	their carbon atoms are fully bonded to hydrogen atoms
name the alkane	methane
name the alkane	ethane
name the alkane	propane
name the alkane	butane
what happens to viscosity as the size of hydrocarbon molecules increase	viscosity increases, long chain hydrocarbons are extremely viscous and flow slower
what happens to flammability as the size of hydrocarbon molecules increase	flammability decreases, short chain hydrocarbons are very flammable
what happens to boiling point as the size of hydrocarbon molecules increase	the boiling point increases, short chain hydrocarbons have very low boiling points due to weaker intermolecular forces