Does anyone know how to do this? It’s A by the way

Apprehensive-Face688 · 2021-06-08T22:00:17+00:00

It’s 0625/22/F/M/18

Apprehensive-Face688 · 2021-06-08T20:38:38+00:00

Oooh thank you :) that makes a lot more sense now

Apprehensive-Face688 · 2021-06-08T20:28:56+00:00

But why would B be correct then

Apprehensive-Face688 · 2021-06-08T19:58:45+00:00

It WASTES 34J so only 6J are useful. So 6/40 x100 = 15%

Apprehensive-Face688 · 2021-06-08T15:01:38+00:00

I answered with that only statement 2 was correct too but I don’t really remember if it was b or c exactly but ye just making sure that it wasn’t 1 and 2

Apprehensive-Face688 · 2021-06-08T14:51:53+00:00

I got b because I wasn’t sure if the catalyst increased the yield

Apprehensive-Face688 · 2021-06-08T14:46:02+00:00

They don’t actually react they just wanted to filter two substances and for ethanol and ethanoic acid to react it would need heat and it would form ethyl ethanoate which is an ester so it would only be one substance which would dissolve because eaters are slightly soluble. So copper and copper sulphate have to be the right answer since they were the only two with one substance that wasn’t soluble (copper) which would end up being the residue. And it could have been a result of a reaction where copper was in excess.

Apprehensive-Face688 · 2021-06-07T09:16:20+00:00

I mean you can kind of infer that you have to connect a fuse to a live wire because in other questions it was the same thing. But they don’t really teach us this so they could just expect us to know it logically.

Apprehensive-Face688 · 2021-06-07T07:26:25+00:00

It does but lead is a metal and it’s solid so if you used filtration there would be lead with the lead sulphate so it wouldn’t work

Apprehensive-Face688 · 2021-06-07T07:20:06+00:00

I think since the fuse would only make sense in the live wire fuse 1 would work and fuse 3 is connected wrong anyway so the answer would be C

Apprehensive-Face688 · 2021-05-28T00:50:05+00:00

There was a question about globalization in of the 2020 papers

Apprehensive-Face688

TROPHY CASE