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GCSE Combined Chemistry
Topic 7 - Organic Chemistry
Alkanes
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General Formula for Alkanes
CnH2n+2
As the chain length increases it becomes
more
viscous
As the
chain
length
increases
it becomes less volatile
As the
chain
length increases it becomes
less
flammable
As the chain length increases the boiling point
increases
As the chain length
increases
the melting point
increases
Combustion is a
exothermic
reaction
Equation for hydrocarbon combustion
Hydrocarbon +
Oxygen
—> Carbon dioxide +
Water