to me that sounds right, you simply had to use that equation. the answer im sure was not in the 1000's(Original post by blueribbons99)
Was that 100% still right because I still don't get it? I did 0.8x4.2x16.4 how many marks do U think for this?
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TheBairdinator
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- 15-06-2016 18:31
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Emilybirch
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- 15-06-2016 18:32
(Original post by elifgecer)
but the next past said that the reaction was endothermic ah im confused now. everyone i asked also got 212J ah -
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- 15-06-2016 18:32
(Original post by TheBairdinator)
to me that sounds right, you simply had to use that equation. the answer im sure was not in the 1000's -
TheBairdinator
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- 15-06-2016 18:34
(Original post by Fractite)
I had 3444 and it looked logical (normally, the numbers go into the thousands). -
Sophienicole2000
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- 15-06-2016 18:34
(Original post by Roquebrune2014)
Nope it was 100% definitely exothermic! It said in the qu! Stop making people worry unnecessarily, if you don't know for definite, don't say.
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panic!intheexam
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- 15-06-2016 18:35
Guys- if it said endothermic it was the further additional paper, if it said exothermic it was the C3 paper
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TheBairdinator
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- 15-06-2016 18:36
(Original post by Fractite)
I had 3444 and it looked logical (normally, the numbers go into the thousands).
simple mistake but i've lost those three marks now -
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- 15-06-2016 18:36
You will only lose 1 mark if u did that
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- 15-06-2016 18:37
You will only lose 1 mark if u did that
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there'snoneed
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- 15-06-2016 18:37
(Original post by Sophienicole2000)
I know for definite, it said endothermic. -
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- 15-06-2016 18:40
(Original post by there'snoneed)
It was definitely, 100% exothermic. I'm absolutely sure. -
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- 15-06-2016 18:40
(Original post by panic!intheexam)
Something with methane in it and an oxygen with three bonds I think -
there'snoneed
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- 15-06-2016 18:41
(Original post by Sophienicole2000)
Ahh well. We can't change it now anyway. All will be revealed in August... -
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- 15-06-2016 18:41
(Original post by there'snoneed)
It was definitely, 100% exothermic. I'm absolutely sure. -
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- 15-06-2016 18:42
the bond energy question was +212 guys dont kniw where you are getting -1270, it was an endothermic reaction as it said so on the paper after it ☺
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- 15-06-2016 18:42
(Original post by Fr3dg)
You don't rearrange the equation though, I think it'd one for correct things used in equation, one for using equation, one for result.
1 mark for Finding the temperature change
1 mark for substituting the values
1 mark for finding the correct answer
Hopefully I get the first mark -
there'snoneed
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- 15-06-2016 18:43
(Original post by Fr3dg)
there were two paper and i think it chemisrt unit 3 it was exo and in chemistry futher additinal, it was endo -
Purpleunicorn197
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- 15-06-2016 18:46
(Original post by dee08)
For how is methane produced can you say from crude oil -
Sarahwatson52
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- 15-06-2016 18:49
(Original post by Sierra-)
I put animals like cows/cattle as they produce alot of methane. Friends put natural gas and biogas too -
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- 15-06-2016 18:49
(Original post by arj2104)
I'm sorry I meant
1 mark for Finding the temperature change
1 mark for substituting the values
1 mark for finding the correct answer
Hopefully I get the first mark
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