| A | B |
|---|
| Alkanes | Have a single C-C bond |
| Alkenes | Have a double C=C bond |
| Ethene | will decolourise bromine water |
| Ethane | will not decolourise bromine water |
| Cracking | spliting up less useful long chain hydrcarbons into useful smaller hydrocarbons |
| Polymers | long chained molecules formed from alkenes |
| Monomers | the small alkene molecules used to make polymers |
| Polythene | Used to make bags, bottles, buckets & bowls |
| Polystyrene | Used to make radio outer cases & McDonalds burger cases, |
| Polypropene | Used to make crates, ropes, carpets, car bumpers & plastic chairs |
| Polychloroethene | Used to make pipes, guttering & window frames |
| Methane | CH4 |
| Ethane | C2H6 |
| Propane | C3H8 |
| Butene | C4H10 |
| Ethene | C2H4 |
| Propene | C3H6 |
| Butene | C4H8 |
| Bromine water | Used to test for alkenes |
| Fractional distillation | Process used to separate the hydrocarbons in crude oil |
