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OCR Chemistry Salters B F332 10th June 2016 (Old specification)

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Reply 40
Original post by SohaXO
I did NH2 attached to ethane


Yep


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Reply 41
Original post by Kira Yagami
Yep, which is aminoethane.


Didn't think it asked you to name it. It said the homologous series it belongs to. Which is amine


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The first question threw me straight away lol diamond and graphite so simple
Reply 43
Original post by leobrave
What did you guys get fr the petrol question? In litres


This is the old spec... I didn't see this on the paper lol
Reply 44
Original post by leobrave
What did you guys get fr the petrol question? In litres


What did the question ask?


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Reply 45
Original post by Kwaks
Didn't think it asked you to name it. It said the homologous series it belongs to. Which is amine


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They didn't haha! Just the homologous series :smile: you're right don't worry
Reply 46
Original post by megancopps
The first question threw me straight away lol diamond and graphite so simple


I didn't even revise it but I remember it from GCSE so I just said what I knew from GCSE lol
Reply 47
Original post by megancopps
The first question threw me straight away lol diamond and graphite so simple


I wrote similarly: both covalent bonds and both a carbon is bonded to 4 other carbons

Difference: diamond is giant lattice and graphite is not. I said carbons in diamond are tetrahedrally arranged and carbons in graphite are all in the same plane

Don't know if that is write


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(edited 7 years ago)
Reply 48
Original post by Kwaks
I wrote similarly: both covalent bonds and both a carbon is bonded to 4 other carbons

Difference: diamond is giant lattice and graphite is not


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Graphite is only bonded to 3 carbons and diamond is 4

They're both covalent aswell and both giant lattices
Reply 49
Original post by SohaXO
They didn't haha! Just the homologous series :smile: you're right don't worry


Ohhhhhhh thank you that's at least one mark :smile:


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Original post by Kwaks
Didn't think it asked you to name it. It said the homologous series it belongs to. Which is amine


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I know. I just said that "you drew aminoethane" right ... that's all lol
Reply 51
Original post by SohaXO
Graphite is only bonded to 3 carbons and diamond is 4

They're both covalent aswell and both giant lattices


Damn!


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Reply 52
Original post by Kira Yagami
I know. I just said that "you drew aminoethane" right ... that's all lol


Ohhhhh yes, I drew aminoethane


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Reply 53


Sorry for being a bad news bear :frown:
I said similarities.

They both only contain carbon. Which are convalenty bonded to each other.

Difference: Carbon forms a tetrahederal strcuture and graphite forms layers/sheets

Diamond forms 4 bonds with each carbon atom.
Reply 55
Original post by SohaXO
Graphite is only bonded to 3 carbons and diamond is 4

They're both covalent aswell and both giant lattices


Would I get marks for saying the carbons are in the same plane in graphite but in diamond they are tetrahedrally bonded???


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Reply 56
Original post by Kira Yagami
I said similarities.

They both only contain carbon. Which are convalenty bonded to each other.

Difference: Carbon forms a tetrahederal strcuture and graphite forms layers/sheets

Diamond forms 4 bonds with each carbon atom.


I said:

Similarities:

-Both covalently bond to carbon
-both giant covalent lattices

Differences:

-graphite has layers diamond does not
-diamond is bonded to 4 other carbons, graphite is only bonded to 3 carbons
Reply 57
Original post by SohaXO
I said:

Similarities:

-Both covalently bond to carbon
-both giant covalent lattices

Differences:

-graphite has layers diamond does not
-diamond is bonded to 4 other carbons, graphite is only bonded to 3 carbons


Think you're right. Oh well, I'll just make up for lost marks in f334


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For the bit at the end, for the propagation reaction I just chose a propagation step from one of the equations. Is that correct?
Reply 59
Wish me luck lol.


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