The Student Room Group
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>

This discussion is now closed.

Check out other Related discussions

Official AQA GCSE Chemistry Unit 2 24th Janurary NEW SPEC

Scroll to see replies

good luck guys:smile:
Reply 121
Avatar for Sumz.96
Sumz.96
1
Good Luck guys 👍


Posted from TSR Mobile
Well that went really well!


Posted from TSR Mobile
(edited 11 years ago)
Reply 123
Avatar for sykik
sykik
4
What did you put for why do they heat stage 1?
To react it with the other one to get the second product but I'm not sure if its right


Posted from TSR Mobile
Original post by grammar12
Well that went well...


Posted from TSR Mobile

I thought it was pretty easy, maybe the grade boundaries will be slightly higher...Pretty standard stuff - much like the Biology.
Except for the electrolysis cells of Mercury and membrane cell haha.
That question was just common sense, comparing the pros and cons...(maybe adding a bit about quality of products produce...chlorine/sodium hydroxide etc) but although I expect Sodium Chloride electrolysis, i found that there wasn't to much to say that wasn't already written in the table...

Easy time-wise I found it, unlike the Bio where I was rushed up right until the end...
Original post by sykik
What did you put for why do they heat stage 1?


Copper is un-reactive, so to speed up the reaction heat energy is needed.
Reply 127
Avatar for sykik
sykik
4
Original post by grammar12
To react it with the other one to get the second product but I'm not sure if its right


Posted from TSR Mobile


Isn't it to speed up reaction but i realized this after the exam lol
yeh it went pretty well! how did u guys find it?
That was easy... too easy, im expecting 49/60 A* 58/60 100ums
Original post by Davothebigafro
That was easy... too easy, im expecting 49/60 A* 58/60 100ums


i reckon A* may even be around 51/60.
Reply 131
Avatar for ali_d123
ali_d123
2
it was okay. i reckon a 49-51/60 A8 and a 43/60 A. This i may have just managed to get an A
Reply 132
Avatar for midgeymoo
midgeymoo
Original post by sykik
What did you put for why do they heat stage 1?


I put to transfer the activation energy for the reaction ti the reactants.

I actually found this quite paper quite hard but that is possibly due to being ill.


Posted from TSR Mobile
(edited 11 years ago)
The empirical formula for the copper and nitrogen?
Reply 134
Avatar for ali_d123
ali_d123
2
Original post by Davothebigafro
The empirical formula for the copper and nitrogen?


Cu3N
Original post by ali_d123
Cu3N

Woop, same :P
The only one i'm unsure about is 'why cant scientists answer this question' about the kelp,give 2 reasons
Reply 137
Avatar for Keith.
Keith.
Original post by Davothebigafro
The only one i'm unsure about is 'why cant scientists answer this question' about the kelp,give 2 reasons


For that, I wrote:
1. It is based on opinion
2. Experiments cannot be carried out to test it.

What do you think? Is this correct?:confused:
Original post by MajorRisk
i reckon A* may even be around 51/60.

Tbh, you're probably right, this was easier than june 2012 and that was 49 for A* and 59 100 ums, i just hope the 100 ums isnt 60/60
Original post by Keith.
For that, I wrote:
1. It is based on opinion
2. Experiments cannot be carried out to test it.

What do you think? Is this correct?:confused:

Yeah, thats probably right, i said experiments cannot decide between right or wrong, and you cant see into the future about how well kelp will be at providing renewable energy, im not sure about my 2nd one though

Related discussions

Latest

Trending

Trending

Articles for you