Official AQA GCSE Chemistry Unit 2 24th Janurary NEW SPEC Watch

Poll: What do you think the 6 marker will be?
Electrolysis of (metal) (14)
22.95%
Gas chromotography and Mass spectrometry (19)
31.15%
Atomic structure and bonding (5)
8.2%
Polymers (10)
16.39%
Explaining the process of a experiment (8)
13.11%
Other (please leave your suggestion) (5)
8.2%
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you-only-live-once
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#121
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#121
good luck guys
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Sumz.96
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#122
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#122
Good Luck guys 👍


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grammar12
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#123
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#123
Well that went really well!


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sykik
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#124
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#124
What did you put for why do they heat stage 1?
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grammar12
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#125
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#125
To react it with the other one to get the second product but I'm not sure if its right


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MajorRisk
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#126
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#126
(Original post by grammar12)
Well that went well...


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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...
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MajorRisk
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#127
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(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.
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sykik
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#128
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#128
(Original post by grammar12)
To react it with the other one to get the second product but I'm not sure if its right


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Isn't it to speed up reaction but i realized this after the exam lol
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you-only-live-once
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#129
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#129
yeh it went pretty well! how did u guys find it?
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Davothebigafro
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#130
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#130
That was easy... too easy, im expecting 49/60 A* 58/60 100ums
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MajorRisk
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#131
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#131
(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.
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ali_d123
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#132
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#132
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
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midgeymoo
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#133
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#133
(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.


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Davothebigafro
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#134
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#134
The empirical formula for the copper and nitrogen?
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ali_d123
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#135
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#135
(Original post by Davothebigafro)
The empirical formula for the copper and nitrogen?
Cu3N
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Davothebigafro
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#136
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#136
(Original post by ali_d123)
Cu3N
Woop, same :P
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Davothebigafro
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#137
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#137
The only one i'm unsure about is 'why cant scientists answer this question' about the kelp,give 2 reasons
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Keith.
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#138
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#138
(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:
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Davothebigafro
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#139
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#139
(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
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Davothebigafro
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#140
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#140
(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
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