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Alkenes
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Isomers
Isomers For alkenes
An isomer is a molecule that has the same molecular formula but has a different display formula
This isomer is called But-2-ene and 2-methylprop-1-ene
But is because there are 4 carbon atoms
2 means that it is the 2nd carbon atom that splitter off into a chain
-ene indicates thats its an alkene.