Chemistry AS Edexcel Unit 1 Fri 23/05/2014

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Reply 20

muf_mur

Original post by Summaiyyah

Any ideas what possible topics can come up IAL CHEMISTRY

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use the specification as a guide.download it from your board's website

Reply 21

koko1234

Do you guys have any expected questions that might come in unit 1 and 2?
My teacher said reaction for koh might come

Reply 22

HappyCheesecake

I'm doing this exam too, only two weeks away now :O

How are you all finding revision?

Reply 23

noosh_s

im doing IAL too! ive been doing past papers and im at th 80%+ level but i still want to bring it up, does anyone have any useful notes to study from? :smile:

Reply 24

Suryash

Can anyone explain unit 2 equilibrium

Reply 25

Girling1996

Original post by Suryash

Can anyone explain unit 2 equilibrium

What needs explaining?

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Reply 26

Suryash

Original post by Girling1996

What needs explaining?

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Can you just mention the main points please becuase it is a short chapter
thanks

Reply 27

Girling1996

Original post by Suryash

Can you just mention the main points please becuase it is a short chapter
thanks

Do you not get anything about equilibria then?

Reply 28

Suryash

Original post by Girling1996

Do you not get anything about equilibria then?

No, it is really confusing me

Reply 29

Girling1996

Original post by Suryash

No, it is really confusing me

I think it will be easier if you give me example questions and I can explain the answers to you.

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Reply 30

18RA41M

hey guys, anyone know the answer to this:
what provides the strongest evidence for the free radical substitution reaction of chlorine and methane - CH3Cl or Cl2 or C2H6

Reply 31

HappyCheesecake

Original post by 18RA41M

hey guys, anyone know the answer to this:
what provides the strongest evidence for the free radical substitution reaction of chlorine and methane - CH3Cl or Cl2 or C2H6

I believe the answer for this one is C2H6 because the absence of any H2 molecules in the product shows that no hydrogen radicals are formed in the propagation steps.

Reply 32

thextractor007

Original post by muf_mur

i am in A2 and resitting chem unit 1. i have barely studied for it. Unit 4 and 5 have consumed most of my time. I hate Chem so much! ugh!!

heyy i am resitting unit 1 as well.what did you get before?

Reply 33

muf_mur

Original post by thextractor007

heyy i am resitting unit 1 as well.what did you get before?

i got 70/120...wbu?

Reply 34

tiarrific25

Original post by 18RA41M

hey guys, anyone know the answer to this:
what provides the strongest evidence for the free radical substitution reaction of chlorine and methane - CH3Cl or Cl2 or C2H6

C2H6 because it can only be formed by two CH3 radicals. Therefore it's proof that free radicals are involved.

Reply 35

18RA41M

Original post by tiarrific25

C2H6 because it can only be formed by two CH3 radicals. Therefore it's proof that free radicals are involved.

Of Course! That makes so much sense. Thanks :smile:

Reply 36

tiarrific25

Original post by 18RA41M

Of Course! That makes so much sense. Thanks :smile:

No problem!

Reply 37

thextractor007

Original post by muf_mur

i got 70/120...wbu?

i got around 81

Reply 38

H-SEA

what are the chances of getting an A? i felt quite confident but this trend makes me lose hope, edexcel are nasty with their papers though. but an A in chem is what im craving i love it :frown:

Reply 39

theJdog

Original post by koko1234

Do you guys have any expected questions that might come in unit 1 and 2?
My teacher said reaction for koh might come

Oh, I'm not too sure about that. I actually don't bother with all the what question will come up business for Chem, because it's so hard to predict, and also I think mostly everything is covered in the paper (what with the multiple choice).