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Posted by wizardharry (U3734860) on Tuesday, 6th November 2012
I'm revising for my chemistry exam tomorrow and I was just wondering if there's a mnemonic I can use to remember the names of the alkanes and alkenes in the order of how long their chain of hydrocarbons is?
Posted by The Bitesize Science Teacher (U14392404) on Wednesday, 7th November 2012
Alkane names end in ane.
Alkene names end in ene.
The first part of the name in both cases indicates the number of carbon atoms:
meth = 1
eth = 2
prop = 3
but = 4
pent = 5
hex = 6
Pent and hex are fairly obvious (think of pentagon and hexagon).
That leaves the first four - MEPB.
Posted by wizardharry (U3734860) on Wednesday, 7th November 2012
Thanks for the help. I wish I had this 24 hours ago! It came up in my exam and I didn't have a clue!
I was pleased with the rest of the questions though! 1 mark won't make too much difference hopefully!
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