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AQA GCSE Chemistry - C2 & C3 (14th May 2015)

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Reply 780
would you say the papers were harder than other past papers ?
Original post by Palette
C2: 49/60 for A*

C3: 44/60 for A*


[Praying for low grade boundaries🙏🙏]
Original post by battenberg123
what did people get for the energy released for the question towards the end of c3


I think I got 6420 but calculations are my weak weak area so it's almost definitely wrong !
Original post by XxRAEXx
[Praying for low grade boundaries]


We'll see about that. Chemistry Unit 1 should be easier so it should raise your UMS.

I don't understand why they test you on Units 2 and 3 in Science before Unit 1.
Reply 784
Original post by Palette
We'll see about that. Chemistry Unit 1 should be easier so it should raise your UMS.

I don't understand why they test you on Units 2 and 3 in Science before Unit 1.


My mum was pretty sure I was lying when I told her it was unit 2 and 3 😂
I did 14x 4.2x 150= 8820 Q but not sure whether 150 was right. As they added 10 then 20 then 30 then 40 then 50 which =150
Original post by Maths4ever!
I did 14x 4.2x 150= 8820 Q but not sure whether 150 was right. As they added 10 then 20 then 30 then 40 then 50 which =150


what was the units?
Original post by AvKar
My mum was pretty sure I was lying when I told her it was unit 2 and 3


Has Unit 2 and Unit 3 always gone before Unit 1 in the timetable in previous years?
Original post by Palette
3234 J.


oh my god! , you are probably the only person i know who got the same answer as me! :smile:
I found C2 okay! How about you guys? My B2 went really well so If this was my worst one it shouldnt matter; we still have physics:frown:
i think i left out the balancing equations , because i didnt know it was there.
what was the question? , was it lead bromide?
Original post by PawanAviator
oh my god! , you are probably the only person i know who got the same answer as me! :smile:


You don't actually know who I am.

:biggrin:

Anyway

Did you do this?

30+25= 55 cm^3

End temperature- initial temperature= overall temperature (energy) change in the experiment so 32-18= 14 C.

Specific heat capacity of water: 4.2 J/g/C

4.2*5.5*14= 3234 J?
Original post by Palette
You don't actually know who I am.

:biggrin:

Anyway

Did you do this?

30+25= 55 cm^3

End temperature- initial temperature= overall temperature (energy) change in the experiment so 32-18= 14 C.

Specific heat capacity of water: 4.2 J/g/C

4.2*5.5*14= 3234 J?


yeah! :biggrin: , since it said OVERALL temperature
Original post by Palette
I did. I think I got one out of five marks for that question, two if the examiner's generous.

Yeah that was a harsh question, not expecting much from it
What did you guys get for the isotope question where it was fill in the blanks??
Original post by PawanAviator
i think i left out the balancing equations , because i didnt know it was there.
what was the question? , was it lead bromide?


Not sure about the exact question but all you had to is put a 2 infront of the second compund
be honest, for the ions question will i lose marks for saying iodine instead of iodide?
Original post by AtomicCaitlin
Yeah that was a harsh question, not expecting much from it


I think I did well in C2 (with the partial exception of the 6 marker) but C3 should have relatively low grade boundaries.

I hope there are enough future McDonald's employees who get Fs, Gs, and Us to pull the boundaries down.

It reminds me a bit of dynamic equilibrium.
Original post by sushiman123
be honest, for the ions question will i lose marks for saying iodine instead of iodide?


Was that in the C2 paper?
Original post by Palette
Was that in the C2 paper?


No, for the testing ions section in C3

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