Chemistry Exam

Is it the full unit your struggling with, I took GCSE chemistry last year and am not doing A levels so maybe I can help :smile:

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Reply 3

OP

Original post by zhang-liao

What exactly are you struggling with in Chemistry Unit 2?

I might be able to assist you :smile:

What exam board you also follow? :holmes:

Sorry that I took a while to reply ive been revising all day and still am, i'm just taking a little break a 10 minute one.
AQA
Balancing Equations
mixing different atoms

Reply 4

OP

Original post by MissMia1998

Is it the full unit your struggling with, I took GCSE chemistry last year and am not doing A levels so maybe I can help :smile:

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So much facts to remember.
I'm doing last minute revision they only told us we had an exam on Tuesday. Then I started revising on Thursday.
I need to get through the whole unit. I'll take some photos of my homework sheet as well inna minute.

Reply 5

With balancing equations I found that it helps if you write down the amount of elements at each side of the equation before attempting to balance them :smile:

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Reply 6

Feraligatr

20

Original post by Zeetingman

Sorry that I took a while to reply ive been revising all day and still am, i'm just taking a little break a 10 minute one.
AQA
Balancing Equations
mixing different atoms

Aaah I see, I did AQA Chemistry in Year 10 and achieved an A*

Mind providing an example you struggle with on Balancing Equations?

What do you mean by Mixing Different Atoms? Displacement reactions?

Reply 7

langlitz

Original post by Zeetingman

So much facts to remember.
I'm doing last minute revision they only told us we had an exam on Tuesday. Then I started revising on Thursday.
I need to get through the whole unit. I'll take some photos of my homework sheet as well inna minute.

Chemistry is not about remembering facts, if you understand it properly then you shouldn't need to memorise very much at all

Reply 8

It's mostly for unit 3 that is remembering things

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Reply 9

OP

Someone explain Paper Chromostrgraphy to me, I can't find it in my textbook or my class book :O

Reply 10

Right paper chromatography is where you put a line (with pencil so it doesn't deprecate the colours) and put for dot of food dye (or something like that) along that pencil line. When you the put this in water the different pigments in the die will separate by mass the heavy pigments will stay near the pencil line where as the lighter pigments will travel up with the water. I might of explained that badly

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Reply 11

OP

Original post by MissMia1998

Right paper chromatography is where you put a line (with pencil so it doesn't deprecate the colours) and put for dot of food dye (or something like that) along that pencil line. When you the put this in water the different pigments in the die will separate by mass the heavy pigments will stay near the pencil line where as the lighter pigments will travel up with the water. I might of explained that badly

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Either way i'm writing that down in my notebook. Just know if I get it wrong in the exam your to blame lol. Thanks anyway.

Reply 12

OP