AQA GCSE Chemistry Paper 2 (Higher Tier) 8462/2H - 20 Jun 2022 [Exam Chat]

Original post by yumyum112358

ah i was in a rush and didnt think of the x25 thing so i j said that crude oil means that nothing goes to waste and you can recycle and **** and omg noo 😭😭

relax the x25 isn't a fact you had to include at all, I just thought it was a good comparison point - however, they are both recycled so idk

Reply 84

Bxrn3r

7

Original post by nimrodpaz

Oh yeah I also got solvent and detergent, and that making sure no light sources would affect it. Did you guys put repeatability over reproducibility? If memory serves, I remember the former is for the same person, and the latter is for others conducting the same experiment

I'm pretty sure it's reproducibility

Reply 85

Original post by mjordan1111

Not sure if this is a stupid question, but what did everyone put for the very first question - why is poly(butene) removed from copper wire? I said to ensure the copper is pure?

I said that the insulator is made from a different material (likely plastic) so it would have to be recycled in a different way

Reply 86

Original post by lm77x

For the question asking what type of reaction it was, would thermal decomposition be acceptable?

I said that

Reply 87

Original post by Bxrn3r

I'm pretty sure it's reproducibility

Ah, just looked it up and it seems I'm right - repeatability is for the same person, and reproducibility is across different people - I did go with repeatability because of how much the question stressed that it was the SAME student, so yeah

Reply 88

What was the 5 marker tangent question?!? I got 2.16969... x 10^-6... yeah that’s defo wrong

Reply 89

Original post by المنچستري

I said that

I put "Thermal decomposition, which is an example of an endothermic reaction", to cover all bases

Reply 90

I was trying to find the question on NPK fertilisers, it wasn’t even on it!

Reply 91

Ali_1215

3

Original post by A233m

Anyone get 1:8 for last qs 16 for yh mass I think.like 1.23*10-3 or somet for the 5 marker in rates cuz I found perfect change and timed by the moles

I got 1:4

Reply 92

Original post by المنچستري

What was the 5 marker tangent question?!? I got 2.16969... x 10^-6... yeah that’s defo wrong

Close though... me and this other guy both got 6.2x10^-5, which is also what one of my friends, got, so I think something close to that would be right... think you're about a factor of ten off though unfortunately, but from your answer it seems you could have got method marks

Reply 93

Original post by Ali_1215

I got 1:4

same - didn't seem like three marks, right?

Reply 94

Fish45738914

2

Original post by المنچستري

What was the 5 marker tangent question?!? I got 2.16969... x 10^-6... yeah that’s defo wrong

I got around the same answer, something on the lines of 0.00002...

Reply 95

Original post by المنچستري

I was trying to find the question on NPK fertilisers, it wasn’t even on it!

I know, really frustrating, especially considering the amount of time it took to memorise it all... Oh well.

Reply 96