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Edexcel GCSE Chemistry Paper 2 Higher Tier 1CH0 2H - 20 Jun 2022 [Exam Chat]

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Original post by Cc00
8DBEC468-56CC-469B-B971-1373FCF9F93A.jpegThis was the answer to balance the octane complete combustion reaction


are you kidding i didn't know you could have 12.5 oxygen so i just didn't put it. lmao
Reply 21
Original post by alberw21
i multiplied all the numbers by 2 to get whole numbers -- will that be okay?

Idk not full marks tho
(edited 1 year ago)
Original post by Cc00
Idk def not full marks tho


well my answer was balanced and the question said to balance it so... its logical that i get all the marks?
Reply 23
Original post by jodiswellcool
are you kidding i didn't know you could have 12.5 oxygen so i just didn't put it. lmao

Yeah u can write 12^1/2 its weird , u have to have had a good teacher
Original post by Cc00
Yeah u can write 12^1/2 its weird , u have to have had a good teacher

yep i think a lot of exam success comes down to luck of having a good teacher and ofc the effort you put in at home
Reply 25
Original post by alberw21
well my answer was balanced and the question said to balance it so... its logical that i get all the marks?


Probs
Original post by alberw21
well my answer was balanced and the question said to balance it so... its logical that i get all the marks?


i did that too bc my teacher used to tell us its better for it not to be a decimal

i think it should be fine since its baalance
Original post by alberw21
well my answer was balanced and the question said to balance it so... its logical that i get all the marks?

You will, theyre both balanced.

what did everyone say about why the apparatus would not be suitable for the question towards the end

i wrote because polystyrene cup is an insulator?
what question is this... i can't recall it
Original post by noora1233

what did everyone say about why the apparatus would not be suitable for the question towards the end

i wrote because polystyrene cup is an insulator?
Original post by alberw21
what did people put for
a) the mass of CO2 produced from calcium carbonate (to 3 sig fig)
b) what would happen to the apparatus after a few days (iron wool oxygen question)

Oh no did the question specify 3 sig fig? I put 2.2g will I get 1/2 for that do you think?
Original post by noora1233

what did everyone say about why the apparatus would not be suitable for the question towards the end

i wrote because polystyrene cup is an insulator?

I wrote that aswell, but I also wrote there was no stand for the cup to stand on because I wasn't sure if that was a valid point since it will help keep energy in aswell for more accurate temp measurement.
Original post by Strix4748
Oh no did the question specify 3 sig fig? I put 2.2g will I get 1/2 for that do you think?


i put 2.200 rather than 2.20 because all the other numbers in the question had 3 digits after the decimal point
Original post by Cc00
Yeah u can write 12^1/2 its weird , u have to have had a good teacher

You're jokingggg 😭
I got 12.5 but didn't write it in and left the question, because I didn't know you could have decimals.
Original post by LittlexLilac
I wrote that aswell, but I also wrote there was no stand for the cup to stand on because I wasn't sure if that was a valid point since it will help keep energy in aswell for more accurate temp measurement.

I said that because polystyrene is a plastic it will melt is this right?
Original post by Strix4748
I said that because polystyrene is a plastic it will melt is this right?


bruh what question is this
Original post by Strix4748
Oh no did the question specify 3 sig fig? I put 2.2g will I get 1/2 for that do you think?


Yeah, definitely one mark, but i think the second was for 3sf.
Reply 37
Original post by Strix4748
I said that because polystyrene is a plastic it will melt is this right?

I do not remember this Q do u do edexcel higher
Original post by alberw21
bruh what question is this


Q10, second last page.
Original post by alberw21
bruh what question is this


it was at the end about the alcohol core practical they were investigating how different alcohols raise the temperature of water in a polystyrene cup and it wanted you to give a problem with the apparatus

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