Need Help with Higher Chemistry Nat 5 Questions

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Reply 20

WithoutMuchHope

Original post by Pennyarcade

Lol to like 2000 for all my subjects

Nah, you totes went back to the 90s for higher physics. Don't even try to deny it.

Reply 21

Pennyarcade

Original post by WithoutMuchHope

Nah, you totes went back to the 90s for higher physics. Don't even try to deny it.

shhhh you're making me look like a loser :getmecoat:

Reply 22

Ed2015

Anyone have the answer scheme to Higher chemistry papers 1998 to 2002?

Reply 23

username1599547

Original post by WithoutMuchHope

How far back did you go for Chemistry past papers last year? There's a site I've found which has all papers since 1978 online...

What's the site called?!

Reply 24

WithoutMuchHope

Original post by BeatricePrior

What's the site called?!

http://www.coltnesshigh.n-lanark.sch.uk/departments/CS_Science/Higher%20Chemistry%20Past%20Papers

You can rep me later.

Reply 25

username1599547

Original post by WithoutMuchHope

http://www.coltnesshigh.n-lanark.sch.uk/departments/CS_Science/Higher%20Chemistry%20Past%20Papers

You can rep me later.

Thanks!!

Reply 26

Ed2015

Can anyone help with this.. can't find the answer to it..
Why is there a regular increase in enthalpies of combustion from methanolto ethanol to propan-l -ol?

Reply 27

username1599547

Original post by Ed2015

Can anyone help with this.. can't find the answer to it..
Why is there a regular increase in enthalpies of combustion from methanolto ethanol to propan-l -ol?

There are more C-C bonds to break so more energy is required.

Reply 28

jonathan14

Can anyone explain this question to me I can never get these

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Reply 29

gwagon

Original post by jonathan14

Can anyone explain this question to me I can never get these

In a redox reaction, a substance is reduced and another substance is oxidised. The answer is B.
The zinc loses electrons(oxidation) and the hydrogen gains electrons(reduction).