level: crude oil + hydrocarbons
Questions and Answers List
level questions: crude oil + hydrocarbons
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 |