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National 5 Chemistry

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Original post by studyranger
I think if you type in national 5 chemistry practice papers a website called STEM or motion something will come up and they have old Int2 and SG papers relevant to each unit in the Nat 5 course


Thanks, that's helpful. :smile:
Do we need to know what crackling is ?
Original post by Ethan100
Do we need to know what crackling is ?


Yeah, of course, and know the catalyst used in cracking..
Original post by Lewis H01
Yeah, of course, and know the catalyst used in cracking..


What the hell is crackling ? I was never taught that ? What unit is it in ? I just came up on a question that talked about crackling.
Cracking is like monomers which make polymers and that sort of thing, but I wouldn't say you need to know the catalyst.
I'm so confused...
I thought cracking was national 4
National 4 ... hhahaha
Can someone explain in simple terms what Crackling is and what I need to know for National 5 ?
Does anyone know were I can find whats included in the Nat 5 Chemistry course so i can make sure that I know what I need to look at ?
Reply 49
Original post by Ethan100
Do we need to know what crackling is ?


Original post by ___Sophie___
I thought cracking was national 4


Original post by Ethan100
National 4 ... hhahaha
Can someone explain in simple terms what Crackling is and what I need to know for National 5 ?


It is national 4.

It's got something to do with Hydrocarbons and fractional distillation or something lol
Reply 50
Original post by Ethan100
Does anyone know were I can find whats included in the Nat 5 Chemistry course so i can make sure that I know what I need to look at ?


http://www.sqa.org.uk/files_ccc/CfE_CourseUnitSupportNotes_N5_Sciences_Chemistry.pdf

Here ^

It says nothing about cracking
Original post by Ethan100
Does anyone know were I can find whats included in the Nat 5 Chemistry course so i can make sure that I know what I need to look at ?


This sqa document tells you
http://www.sqa.org.uk/files_ccc/CfE_CourseUnitSupportNotes_N5_Sciences_Chemistry.pdf
Wait so if it's not in the specifications why do I need to know it ?
Original post by Ethan100
Wait so if it's not in the specifications why do I need to know it ?


I'm pretty sure you don't..
Our teacher said it was N4
Original post by ___Sophie___
I'm pretty sure you don't..
Our teacher said it was N4


But if it's Nat 4 surely we need to know it ? Hmm

Thanks very much Sophie :smile:
Original post by Ethan100
But if it's Nat 4 surely we need to know it ? Hmm

Thanks very much Sophie :smile:


I thought we only had to know the things in the sqa course notes document :s-smilie: I don't know
Original post by ___Sophie___
I thought we only had to know the things in the sqa course notes document :s-smilie: I don't know


If it does come up and it's not in the course notes document... WE CAN PETITION :biggrin:
Original post by Ethan100
If it does come up and it's not in the course notes document... WE CAN PETITION :biggrin:


Indeed we can :biggrin:
Lol, I'm pretty sure I've seen questions on cracking in the intermediate 2 past papers..
Original post by Ethan100
Do we need to know what crackling is ?


Do you mean Cat. Cracking?

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