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Author Topic: Unit 3b  (Read 4274 times)

Offline qwert

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Re: Unit 3b
« Reply #15 on: April 20, 2010, 09:41:34 am »
Oh ok so theres no Jan 2009 ? Alright Thanks man but wt abt the question paper of Jan 2010 ... if u have it too please :)
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Offline Saladin

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Re: Unit 3b
« Reply #16 on: April 20, 2010, 11:24:37 am »
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Offline Saladin

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Re: Unit 3b
« Reply #17 on: April 27, 2010, 06:40:08 pm »
Please wait for the Physics examiner reports
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Offline Saladin

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Re: Unit 3b
« Reply #18 on: April 27, 2010, 07:10:49 pm »
My internet is acting screwy. Will post them wen i can.
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Offline student

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Re: Unit 3b
« Reply #19 on: April 28, 2010, 06:05:24 pm »
Is your internet better now? ^_^
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Offline Saladin

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Re: Unit 3b
« Reply #20 on: April 28, 2010, 07:21:55 pm »
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Offline student

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Re: Unit 3b
« Reply #21 on: April 28, 2010, 07:56:13 pm »
Thanks.
What about Unit 4? And Unit 3b from June 2009.. that would be great. :)
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Offline Saladin

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Re: Unit 3b
« Reply #22 on: April 28, 2010, 08:39:46 pm »
Sorry, dont have them
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Offline Igcseboy

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Re: Unit 3b
« Reply #23 on: May 10, 2010, 08:53:59 am »
guys when did the Unit 3B physics and chemistry start

i want papers for unit 3B like from 2005 .....

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Offline Saladin

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Re: Unit 3b
« Reply #24 on: May 10, 2010, 08:57:23 am »
Quote from: Igcseboy on May 10, 2010, 08:53:59 am
guys when did the Unit 3B physics and chemistry start

i want papers for unit 3B like from 2005 .....



From 2001, I think.

Anyways, they are all available here: Edexcel Chemistry Papers
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Offline Igcseboy

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Re: Unit 3b
« Reply #25 on: May 10, 2010, 09:11:17 am »
Quote from: The Mysterious Dude on May 10, 2010, 08:57:23 am
From 2001, I think.

Anyways, they are all available here: Edexcel Chemistry Papers

physics Unit 3B like now the alternative to practical paper was not there i guess it was 3B topic solid materials paper!!!
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Offline ksitna

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Re: Unit 3b
« Reply #26 on: May 10, 2010, 06:27:08 pm »
i need help in this que
To check the validity of the results for the garlic extract in the second
investigation, a student searched the scientific literature for similar studies. She
found data for the antibacterial effect of onion (Allium cepa), which is closely
related to garlic (Allium sativum). The data for onion extract are shown below.
Complete the table for the garlic extract in the second investigation by writing in
the mean you calculated in c(i).
What does this information suggest about the validity of the results for the garlic
extract?

what do they mean by validity?
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Offline abuelzouz

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Re: Unit 3b
« Reply #27 on: May 10, 2010, 07:27:47 pm »
where is this
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Offline ksitna

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Re: Unit 3b
« Reply #28 on: May 10, 2010, 08:36:18 pm »
jan 2010
but like i want to know what to write when these kind of questions come up
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Offline Saladin

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Re: Unit 3b
« Reply #29 on: May 11, 2010, 01:23:59 pm »
Quote from: ksitna on May 10, 2010, 08:36:18 pm
jan 2010
but like i want to know what to write when these kind of questions come up

The markscheme should be able to guide you to what you need to write. Like I said, you need a lot of practice to get chem rite!
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