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How many bonds does a alkene have
2 (Double bond)
Where does Crude oil come from?
Either underground or under the sea bed. (crushed up organisms)
Crude oil is a mixture of different H____________
Hydrocarbons
What is the process called where you are separating the different hydrocarbons?
Fractional Distillation
The crude oil need to be split into F_______
Fractions
A fraction will contain hydrocarbons with a similar ____ ____
length chain or boiling point
Finish the sentence = The longer the molecule the greater the ________ forces.
Molecular
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
Does a short chain have a higher or lower boiling point?
lower
Is a longer chain hydrocarbon have a higher or lower viscosity
Higher (very thick)
Does a shorter chain hydrocarbon have a lower or higher flammability
higher, it catches alight very easily
What is the test for CO2 ?
Limewater turning cloudy
Complete combustion waste products are? (2)
CO2 and water vapour (h2o)
Incomplete combustion happens when there is not enough ______
Oxygen / O2
Incomplete combustion produces a dangerous gas called....
Carbon Monoxide
Why does Cracking take place?
Because long chain hydrocarbons are not very useful, whereas short chain hydrocarbons make better fuel
