OCR chemistry unit 1 Friday 21st May 2010 Watch

hardz21
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#41
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#41
(Original post by Minusthevolta)
... So not only does somebody answer your question in the time that I took writing it. But they explained it better than me!

Fml. Trying to do a nice thing. Haha, well done hardz21

Questionable name... *cough*.
You did better actually :p:
Because you read the question I wrote about HNO3 for some reason, but you wrote about HCl, which is what the question was about. So u got the mark hey haha

Well done, and good luck for tomorrow
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Hoomz
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(Original post by hardz21)
No no, you're right, i think i got overwhelmed and made a mistake. thanks for correcting me !!! And good luck. Ive just finished looking over the unit, time to do some more past exam papers and definitions

good luck and thanks, that revision is paying off
Ahh, I actually do have a slight it of hope! lol.
Thank you good luck to you too!
I'm currently reading over disproportionation whilst sat outside on the trampoline. Awesome.
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flibbage0
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#43
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#43
(Original post by hardz21)
http://www.mediafire.com/?wlmtymmwyme

that's the unit 1 paper for january

Has anybody got the mark scheme?

Water of crystallisation will come up !!!
anyone got the mark scheme:confused:
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J DOT A
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#44
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#44
(Original post by 786girl)
lol wot do you meannnn hint hint
lol
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786girl
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#45
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#45
I Have It Give Me 5 Mins Ill Upload It Onto Mediafire I Need 2 Make An Account First
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786girl
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#46
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#46
how do i upload files on here???
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786girl
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#47
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#47
here is the mark scheme for the jan 2010 paper
dont say Im not helpful!!! :p:
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786girl
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#48
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#48
(Original post by hardz21)
You did better actually :p:
Because you read the question I wrote about HNO3 for some reason, but you wrote about HCl, which is what the question was about. So u got the mark hey haha

Well done, and good luck for tomorrow
lol i knew u done it by accident btw ive put up the mark scheme
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Nymthae
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#49
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Best of luck to you all, I have most of my friends doing the resit (lucky me not included ) Not so confident about unit 2 however haha
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flibbage0
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#50
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#50
(Original post by 786girl)
here is the mark scheme for the jan 2010 paper
dont say Im not helpful!!! :p:
OMG thank you sooooo much.
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steph_v
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#51
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(Original post by 786girl)
here is the mark scheme for the jan 2010 paper
dont say Im not helpful!!! :p:
+rep

Well, I will tomorrow, because I've used my rep for today, if I remember
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RosePetal
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#52
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#52
(Original post by 786girl)
here is the mark scheme for the jan 2010 paper
dont say Im not helpful!!! :p:
Been looking around for this for ages! thanks, rep coming your way soon
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Varciani
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#53
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Yeah, I'm taking this, it's my retake. Need to get an A to make it easier in the Unit 5 exam!!! I keep on messing up on the bleach questions (NaClO etc). Spending tomorrow morning remembering bond angles and definitions =S...
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0201Bean
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#54
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#54
Main Principles of the Electron pair Repulsion Theory, in a nut shell, anyone?
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apo1324
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I got this exam tomorrow too, first time for me though bec of the snow... Hopefully i will remember everything by 1pm tomorrow. Good luck everyone!
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fredster2004
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#56
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#56
(Original post by 0201Bean)
Main Principles of the Electron pair Repulsion Theory, in a nut shell, anyone?
Lone pairs repel more than bonded pairs
simple!
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0201Bean
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#57
(Original post by fredster2004)
Lone pairs repel more than bonded pairs
simple!
XD
I'm just doing this exam question and it asked what the angle would be of four bonds on a central carbon atom (109) and to explain it using the repulsion theory? :P
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786girl
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(Original post by 0201Bean)
XD
I'm just doing this exam question and it asked what the angle would be of four bonds on a central carbon atom (109) and to explain it using the repulsion theory? :P
yeh you would say its 109.5 tetradedhral because it has 4 bonded pairs and NO LONE PAIRS. the bonded pairs repel eachother so they are as far apart as possible
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anon17
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#59
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#59
any ideas on whats possibly going to come up on the OCR salters B chem anyone?
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0201Bean
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#60
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#60
(Original post by 786girl)
yeh you would say its 109.5 tetradedhral because it has 4 bonded pairs and NO LONE PAIRS. the bonded pairs repel eachother so they are as far apart as possible
Thanks
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