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6. why are alkenes more reactive than alkanes
- because of the double bond, other atoms can easily be added to the chain
- they have more carbon because of the double bond
- they have more hydrogen because it is saturated
7. how do you separate crude oil
- fractional distillation
- chemical reaction
- filtration
8. which one is saturated: alkanes or alkenes
- both
- none
- alkanes
- alkenes
9. what is a polymer
- a long chain molecule built up of a number of smaller units; monomers
- a type of cloth made from the chemical reaction between ethene and polyvinyl chloride
- when molecules represent larger molecules
10. what is the formula for an alkene