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Thank god that chemistry exam was easy

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What would be REALLY helpful, is it someone could just remember and label like this:

1.
2.
3.
etc

with the marks that question offered. Then I may be able to roughly calculate it. I just can't remember what each question was worth and estimating without that leave me in a mess.

Where is the unofficial markscheme

Reply 41

ellieotta

Original post by redsoules

Others did. It's not correct though unfortunately. The 2Fe2 signifies a covalent bond (the lower 2 on the right of Fe) and covalent bonds are not comprised of metals (non-metals only). So it really should be 4Fe

I got 2FeO3 + 3C -> 2Fe + 3CO2

Reply 42

Mollsbarks

Yaasssss chem sucks so badddd

Reply 43

Teenw123

Original post by Jamie Vardy

Realistically a C will be 38, a B 44, an A 51 and an A* most likely 56.

Your'e having a laugh, at max A* will be 53/4

Reply 44

salty670

it was v easy last year swell and grade boundaries were not amazingly high either

Reply 45

username2312801

Original post by Jamie Vardy

ARE YOU AN IDIOT?

You've forgotten about the grade boundaries...

LMAO this actually made me laugh so hard !!

Reply 46

username2312801

Original post by Teenw123

Your'e having a laugh, at max A* will be 53/4

Ikr at least A* would be 51/52 and A would be 41/42

Reply 47

username2312801

For the question about Iron and Steel if i wrote it's an alloy so it's stronger what mark would i get out of 3 ?

Reply 48

B_9710

Original post by Elliepinhorne

I got 2FeO3 + 3C -> 2Fe + 3CO2

\text{Fe}\text{O}_3

?
Iron(VI) oxide?
That wouldn't be right.

Reply 49

octoberrain

Same with CIE :biggrin:

Reply 50

redsoules

Original post by Elliepinhorne

I got 2FeO3 + 3C -> 2Fe + 3CO2

You can't have that because the question/words printed on the paper didn't have that my darling.

Fe2O3 + C -> ....... + CO2

Balance this out like so...

2Fe2O3 + 3C ----> 4Fe + 3CO2