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Crude Oil and Cracking
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What is crude oil a mixture of?
Hydrocarbons of different chain lengths
What is a hydrocarbon?
A molecule made of hydrogen and carbon only
On food labels we see saturated and unsaturated fats. Which fats have carbon carbon double bonds? (C=C)
unsaturated
Name a use of the hydrocarbons from crude oil.
Tarmacing roads, Jet fuels, car fuel, for cooking (gas hob etc)
Name something we can make from alkenes.
Polymers or other chemicals
A liquid turned bromine water colourless, was it an alkane or an alkene?
Alkene
What does bromine water test for?
C=C/unsaturation
Is crude oil a renewable or finite resource?
Finite
What is a finite resource?
A resource that will run out
Why is cracking necessary?
To make more useful molecules
Cracking splits up long chain alkanes into .......
smaller alkanes AND alkenes
Is propane an alkane or an alkene?
Alkane
Is hexene and alkane or an alkene?
Alkene (ends in -ene)
Are alkanes saturated or unsaturated?
Saturated
Simple distillation is the splitting up of a mixture that has different ___________ points
Boiling
Crude oil is split into hydrocarbons of different chain lengths through _____________ distilation
Fractional


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