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edexcel igcse chemistry paper 2c discussion ( on 20th)

The chem paper 2 is on 20th so yea any ideas or predictions guys ? We can discuss it here
Original post by david.321
The chem paper 2 is on 20th so yea any ideas or predictions guys ? We can discuss it here


Hi I actually have a question. For electrolysis questions, I was doing some practice and I had to work out moles produced of e.g. chlorine by knowing the amount of faradays passed through the solution? I have never done this before and I checked that it was for IGCSE chemistry and it was 😭😭 just checking if anyone else knows how to do this? Ive never seen it on the specification either but it freaked me out😂
Original post by A_bee :)
Hi I actually have a question. For electrolysis questions, I was doing some practice and I had to work out moles produced of e.g. chlorine by knowing the amount of faradays passed through the solution? I have never done this before and I checked that it was for IGCSE chemistry and it was 😭😭 just checking if anyone else knows how to do this? Ive never seen it on the specification either but it freaked me out😂


Was this on Physics and Maths Tutor? I saw the same thing, but as I've never been taught it in my life and it's nowhere on the specification I am just ignoring the questions; I have concluded that it's from the old specification and they just haven't updated it. But maybe I'm wrong.
Original post by plankt0n
How did everyone find it? I thought it was pretty good but the structural formula one confused me (nobody at my school knew what you were supposed to write). I put the following because I saw something similar on the specification but I don't think it's right, what did everyone else put?

structuralformula.png


How many marks for that question?
Original post by User2762
How many marks for that question?


Well that was one mark but there were another two marks of a similar style
Original post by plankt0n
How did everyone find it? I thought it was pretty good but the structural formula one confused me (nobody at my school knew what you were supposed to write). I put the following because I saw something similar on the specification but I don't think it's right, what did everyone else put?

structuralformula.png


i did the same thing, but instead of CH3 i wrote it with its bonds, like H - C - H?
Original post by randompanda_
i did the same thing, but instead of CH3 i wrote it with its bonds, like H - C - H?


Oh yeah I was thinking of doing that, but the fact it said structural formula rather than displayed formula kind of threw me off
Original post by plankt0n
Oh yeah I was thinking of doing that, but the fact it said structural formula rather than displayed formula kind of threw me off


maybe thats it, ig we'll never know till the results day lol, i think it was like a mark though so its not too bad
Reply 8
what do you think grade boundaries will be
Reply 9
YOOOO anyone did the 2CR paper?
Original post by plankt0n
Was this on Physics and Maths Tutor? I saw the same thing, but as I've never been taught it in my life and it's nowhere on the specification I am just ignoring the questions; I have concluded that it's from the old specification and they just haven't updated it. But maybe I'm wrong.


I’m so glad it didn’t come up and yes, I think you were right! I hope it went well for everyone, I thought it was pretty good too but the structural formula one put me off because in my notes that would be something like COOH or something, not the displayed formula 😭😭 luckily I think all the structural formula questions were 3 marks in total, so not much!
Reply 11
They asked the structural formula for CH3COOH right ?
So this is what it looks like
5ef5a01b-15e2-4b79-ada5-70d1dab58bcc_aceticacid1.jpg
they would give marks to ur one too i mean its the same u didnt expand the H letters thats all :smile:
Reply 12
Original post by hr27
what do you think grade boundaries will be

lower ig ? cuz they gave us advanced info bcz we were in pandemic and stuff so they might lower it or they might increase it bcz the they would say papers were easy ?
does anyone know if theres a breakdown of the answers for the paper like you can sometimes find with maths?
Reply 14
Original post by david.321
They asked the structural formula for CH3COOH right ?
So this is what it looks like
5ef5a01b-15e2-4b79-ada5-70d1dab58bcc_aceticacid1.jpg
they would give marks to ur one too i mean its the same u didnt expand the H letters thats all :smile:


you aren't supposed to write the OH separate that's displayed formula.

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