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AQA CHEM4 and CHEM5 revision thread 2016

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Original post by MedioCentro97
I'm 95% sure you can't have "methly" twice in a IUPAC name


Of course you can.
(edited 7 years ago)
Reply 161
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mbh16
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Original post by Lilly1234567890
yeah


oh right ok
Good luck guys!!
Original post by ahsan_ijaz
I usually / by 2 to get the simplest ratio until you cant half anymore to get a simple number - just curios why it didnt work here


Even if you divide by two it still works, so C6H12 divide by two gives you C3H6 then divide by three will give you CH2


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Original post by mbh16
A trimer is a polymer with only 3 monomers in it, the answer to this question is basically the product formed in step 3 but with an extra monomer of ethanal added.
so it should look like this i think: Screen Shot 2016-06-13 at 15.26.50.png


ah ok, I think ive got you, thanks very much, and good luck today !
Reply 165
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Original post by alevelup
ah ok, I think ive got you, thanks very much, and good luck today !


ok good!, This probably won't even come up today, thanks and good luck to you too!
4 hours left, everyone! Good luck!
Original post by mbh16
here you go: Screen Shot 2016-06-13 at 20.51.33.png You basically have to repeat the steps to add another monomer. I forgot to put a OH- which is formed as well on the last step


Thank you!!
What the hell was that paper.
That was a decent paper. Typical grade boundaries.
Grade boundaries will be low
Reply 171
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Original post by Aerosmith
Thank you!!


yeah there was a question similar to this today!!
Decent? It was much harder than all the other chem papers :cry2::cry:

Original post by High Stakes
That was a decent paper. Typical grade boundaries.
Original post by Swirly123
Decent? It was much harder than all the other chem papers :cry2::cry:


It was. I found it hard myself, but I like to joke about it. Everyone else on this thread took me seriously tho. Lol.

Dw, grade boundaries will definitely be lower.
Original post by High Stakes
It was. I found it hard myself, but I like to joke about it. Everyone else on this thread took me seriously tho. Lol.

Dw, grade boundaries will definitely be lower.



oh i thought you were like some chem wizard. im so upset with this i wanted an a* :frown:
Original post by Swirly123
oh i thought you were like some chem wizard. im so upset with this i wanted an a* :frown:


Same- I need an A* really!


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https://www.facebook.com/groups/148389988911787/
Heres a page to complain to AQA
I didn't think it was so bad? I couldn't even look at the past papers and thought those were hard, this years seemed easier than all previous years

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