C9
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
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What atoms do hydrocarbons contain?
Hydrogen and carbon atoms
What is the simplest hydrocarbon you can get?
Alkanes
What’s the alkanes formula?
CnH2n+2
What are alkenes apart of?
Homologous
What are alkenes?
Saturated compounds ( 4 single covalent bonds )
What are the first four alkanes
Methane,ethane,propane and butane
Formula for methane?
CH4
Formula for ethane?
C2H6
Formula for propane?
C3H8
Formula for butane?
C4H10
What happens as the chain gets longer?
Hydrocarbon properties change
The shorter the carbon chain…
More runny a hydrocarbon is
What is a charecteristic of a shorter carbon chain?
They are more volatile (lower boiling point) More flammable the hydrocarbon is
What are short chain hydrocarbons used as?
Bottled gases
When does complete combistion occur?
When there’s plenty of oxygen
What is the waste product in complete combustion?
Carbon dioxide and water vapour
Hydrogen + oxygen =
Carbon dioxide + water + (energy)
During combustion what is oxidised?
Carbon and hydrogen
?
.
What is 1 example crude oil is used to make?
Fuels
How often is crude oil made?
Over a long period of time
What type of fuel is a crude oil
A fossil fuel
How is crude oil made?
From the remains of plants and animals that died million of years ago (plankton)
Where can crude oil be found?
The remains from years ago which can drilled up from the rocks