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

how many marks was that cuz all I out was minus the mass of the crucible from the mass of the crucible with its contents

2 marks

Reply 81

Wild Watermelon

3

they are on about a different question i believe

Original post by Hugme

Was the answer not propene? Because there were 3 carbons

Reply 82

Hsebdhdjs

1

For the reaction between magnesium and oxygen all I put was open the lid slightly and see if the magnesium has completely disappeared I am guessing that’s wrong.how many marks would that be if it is technically right?

Reply 83

LittlexLilac

5

Original post by Hsebdhdjs

For the reaction between magnesium and oxygen all I put was open the lid slightly and see if the magnesium has completely disappeared I am guessing that’s wrong.how many marks would that be if it is technically right?

Honestly speaking, I don't think you'd get marks for that because it doesn't disappear, it oxidises, so like turns white I think.

Reply 84

totallynotshri

10

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)

a) 2.20
b) I put that the water level rises to fill up the space because oxygen has been used up (I saw a similar question on a specimen paper which said the same thing)

(edited 1 year ago)

Reply 85

totallynotshri

10

Original post by Hsebdhdjs

For the reaction between magnesium and oxygen all I put was open the lid slightly and see if the magnesium has completely disappeared I am guessing that’s wrong.how many marks would that be if it is technically right?

I don't think it's worth any marks - you have to say that you need to reheat the crucible and its contents for 5 minutes and let it cool. Then weigh the mass again. Repeat until the crucible and its contents have reached a constant mass (I think that's what it is)

Reply 86

totallynotshri

10

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 said that 1.00g of the substance (I forgot what it is) would not cause a significant rise in temperature. The temperature rise would be too small to be measured with the thermometer... but tbh your answer sounds more correct, I didn't even see that it's a polystyrene cup SKJDFS

It's a guess lol but I think that sounds right?? Sorry guys lol the chem paper was really easy for me and I'm excited to answer all of these 😭

(edited 1 year ago)

Reply 87

carsarefun

1

anyone remember what the last question was

Reply 88

carsarefun

1

anyone remember what the last question was please

Original post by totallynotshri

I said that 1.00g of the substance (I forgot what it is) would not cause a significant rise in temperature. The temperature rise would be too small to be measured with the thermometer... but tbh your answer sounds more correct, I didn't even see that it's a polystyrene cup SKJDFS

It's a guess lol but I think that sounds right?? Sorry guys lol the chem paper was really easy for me and I'm excited to answer all of these 😭