| A | B |
|---|
| crude oil | oil extracted from the ground |
| pump | used to extract oil from the ground |
| carbon | atom that makes up the backbone of hydrocarbons |
| fractional distiallation | used to seperate the parts in oil |
| cracking | used to break up the large oil molecules |
| heat and catalyst | two things needed in cracking |
| cat cracker | device where cracking takes place |
| small molecules | what larger molcules are made into in cracking |
| thermal decomposition | cracking is this type of change |
| alkane | pentane is an example of what? |
| saturated | a hydrocarbon with no double bonds |
| unsaturated | a hydrocarbon with some double bonds |
| alkene | ethene is an example of? |
| hydrogen | attached to most carbons in a hydrocarbon |
| it is too thick | why can crude oil molecules not be used for fuel |
| petrol | the products from cracking a paraffin smell like? |
