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UNOFFICIAL MARKSCHEME ocr chemistry gateway today

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Original post by ellamoon_22
They told us gortex was breathable so i didnt write that i said its more comfortable


Yeah I couldn't think what the other properties were.. :smile:
Reply 61
I think it was 2 marks not 3 for the C2 Q3 (amalgam - murcury...)
Original post by Munmun.
I think it was 2 marks not 3 for the C2 Q3 (amalgam - murcury...)


Yeah you're right
Reply 63
4) I think was the reacting masses question where you had to prove it was 1.578 this was worth 2 marks
5) you didn't have to rearrange it simply said he wanted to make 1.578g but only made something like 1.2(?). And you just simply had to normal percentage yield question. This was worth 2 marks
Reply 64
Original post by CandC
4) I think was the reacting masses question where you had to prove it was 1.578 this was worth 2 marks
5) you didn't have to rearrange it simply said he wanted to make 1.578g but only made something like 1.2(?). And you just simply had to normal percentage yield question. This was worth 2 marks


Also another question you're missing is the 4Al + 3O2 = 2Al2O3 which was worth 2 marks and is in C3
Reply 65
Original post by ellamoon_22
C2H4 and C10H22

10-2
22-4

C8H18


dammit i should've seen that, thx for explaining
Original post by mxskaan
Same? I though it was pie then bar chart. Is it something to do with discrete continuous data or something?

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Was the first one definitely pie? (I put pie then bar too)
How many marks was the question about the difficulty of making medicines?
Whats your prediction for an A* on this paper
Original post by student909
Was the first one definitely pie? (I put pie then bar too)

I put pie
Original post by student909
Whats your prediction for an A* on this paper


61-63
Original post by student909
How many marks was the question about the difficulty of making medicines?


2marks i think or 3
Original post by ellamoon_22
I put pie


reason for it being pie?
Original post by student909
reason for it being pie?


Looking at diff ingredients pie chart easy to view idk u can convert to angles. They might allow both pie and bar chart. Basically i just guessed amd went with my gut instinct:biggrin:
Original post by ellamoon_22
Looking at diff ingredients pie chart easy to view idk u can convert to angles. They might allow both pie and bar chart. Basically i just guessed amd went with my gut instinct:biggrin:


do you think they may allow bar too for the second one
Original post by student909
do you think they may allow bar too for the second one


Yes i think it is bar chart but i put line graph idk why
Reply 76
I think first one was pie as all the numbers added to 100. So out of a percentage.


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(edited 7 years ago)

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