AQA GCSE Chemistry · 8462
Specification 4.7.2.1 · Paper 2
Revise: Alkene StructureThe C=C bond means atoms can be added across it in a reaction. This is why alkenes are described as unsaturated.
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GCSE Chemistry · key term
A molecule containing a carbon–carbon double bond, so it has fewer hydrogen atoms than the corresponding alkane.
Used by AQA
Specification 4.7.2.1 · Paper 2
Revise: Alkene StructureThe C=C bond means atoms can be added across it in a reaction. This is why alkenes are described as unsaturated.
When explaining ‘unsaturated’, link the C=C bond to having two fewer hydrogen atoms than the alkane with the same number of carbon atoms.
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