AQA GCSE CHEMISTRY UNIT 2 HIGHER CHY2H January 2012 unofficial mark scheme

An A* would be more like 38! Everyone found it really easy and i wouldn't be surprised if it was higher.

This exam in comparison with Biology had much smaller, simpler questions that correlated with the mark scheme quite well.

Did the ethanol have weak intermolecular forces AND was it a simple covalent structure? I wrote that and can only hope it's right...

No it was weak intermolecular AND simple molecular. Don't worry a few people i know made the same mistake.

The UMS for 100 will be something like 42/45. It was a fairly good paper. The paper from this year in the summer that we did as a mock was also quite easy, I got 43/45. Only because I memorised the specification...

No it was weak intermolecular AND simple molecular. Don't worry a few people i know made the same mistake.

Yeah you're right. I think I did ok but I forgot 3a because I didn't even realise it was there - two easy marks down the pan! Hopefully it is more like 41 so it will compensate for my silly mistake!

I don't know what you mean. Ethanol both has intermolecular forces and is a simple covalent structure, just like water!

Oh right sorry i meant simple molecular covalent. Not sure if you need to write the whole thing to get the marks though.

Hello, Does 'Evaporation' count as a correct answer for 3b?

Seems good, looks like i dropped approx 3 marks, for the question about why nano particles are better, i put: because they would have a larger SA (for same volume) so the transfer of heat would increase. Did anyone else write something similar to this, and think that it is correct?

does it make a difference whether it is Fe2O3 or O3Fe2?