Does a short chain have a higher or lower boiling point?
lower
Does a shorter chain hydrocarbon have a lower or higher flammability
higher, it catches alight very easily
Where does Crude oil come from?
Either underground or under the sea bed. (crushed up organisms)
The crude oil need to be split into F_______
Fractions
During the process of splitting the crude oil into its Fractions the oil is boiled to its correct temperature and turned back into a liquid... this process is called
Condensed / Condensing
To test whether the hydrocarbon is a alkene or alkane you can use _______ water
Bromine
Complete combustion waste products are? (2)
CO2 and water vapour (h2o)
Alkenes are also reffered to as Un________ hydrocarbons
Unaturated
Incomplete combustion happens when there is not enough ______
Oxygen / O2
Why does Cracking take place?
Because long chain hydrocarbons are not very useful, whereas short chain hydrocarbons make better fuel
Alkanes are hydrocarbons with a _____ bond
single
Crude oil is a mixture of different H____________
Hydrocarbons
Is a longer chain hydrocarbon have a higher or lower viscosity
Higher (very thick)
A fraction will contain hydrocarbons with a similar ____ ____
length chain or boiling point
How many bonds does a alkene have
2 (Double bond)
What is the process called where you are separating the different hydrocarbons?
Fractional Distillation
When an Alkene is tested it leaves the Bromine Water what colour?
Colourless or Decolourise
Finish the sentence = The longer the molecule the greater the ________ forces.
Molecular
Incomplete combustion produces a dangerous gas called....
Carbon Monoxide
What is the test for CO2 ?
Limewater turning cloudy
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