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Chemistry c2 unit 2 aqa monday gcse 20th new spec

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Avatar for FireDwarf
FireDwarf
Original post by studiousman
I put exothermic too for the first one! I thought this was right..

Also, what was the question that talked about the cake? Why did I tell cake rise and would the reaction need to be heated? :smile:


I said exothermic too

I put that the gases will rise and cause the cake too rise too basically.

I said that it would need to be heated to overcome the activation energy

Sound correct or wrong?
Hope exothermic is right!
I said the gases are produced.
Then I said you don't need to heat just add water as it was reversible grrr I'm so stupid!

Yours sounds right!
Reply 202
Avatar for FireDwarf
FireDwarf
Original post by studiousman
Hope exothermic is right!
I said the gases are produced.
Then I said you don't need to heat just add water as it was reversible grrr I'm so stupid!

Yours sounds right!


Could be because the 2nd reason you said, cause endo does only need water.

Im not too sure, but it was like 1 mark i think, not too much to worry about!
What did you put for the balancing equations question?
there wasn't a balancing equations question as it was already balanced
The one for electrolysis?
what was the question about?
The potassium one I think, it was at the top of the page and it said balance this equation.
sorry i dont remember the question
Original post by denizcan619
sorry i dont remember the question


it's 2Cl2 ---> Cl2 + 2e- :smile:
WHat did you guys put for the heat one.
Original post by BrainJuice
WHat did you guys put for the heat one.


do you mean the one for the first question?
it was endothermic
http://www.thestudentroom.co.uk/showthread.php?p=42718766#post42718766

Physics thread! What going to come up for the 6 marker?
Original post by 09spoudyal
it's 2Cl2 ---> Cl2 + 2e- :smile:


oh yeah
that's what I put aswell
Does anyone know where I can find an unofficial mark scheme for the GCSE chemistry exam which was taken on Monday?
Original post by KendraTurner
Does anyone know where I can find an unofficial mark scheme for the GCSE chemistry exam which was taken on Monday?


Ditto


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What did you guys put for the amount of nitrogen needed to produce ammonia?? i got 5.59 tonnes.... :confused:
Original post by denizcan619
oh yeah
that's what I put aswell

2Cl* not 2Cl2?
Original post by studiousman
I put exothermic too for the first one! I thought this was right..

Also, what was the question that talked about the cake? Why did I tell cake rise and would the reaction need to be heated? :smile:

It was why didn't the cake need to be heated, the answer being it is an exothermic reaction and has low activation energy so doesn't require much energy (from heating) to start.
Original post by sammann123
2Cl* not 2Cl2?


yeah i noticed it was a mistake

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