If you guys need any last minute calculation or question help tag me in, been awhile since nat 5 but i'll see what I can do
Thanks, that would be great.
I was looking through this National 5 Question book and it asked me a question about a process or something called "Crackling". I am certain I wasn't taught that in chemistry this year, Did you know anything or did you need to know anything about it when you were in nat 5 ?
I was looking through this National 5 Question book and it asked me a question about a process or something called "Crackling". I am certain I wasn't taught that in chemistry this year, Did you know anything or did you need to know anything about it when you were in nat 5 ?
The only thing I could think you are talking about is Cat. Cracking. Other than that I have never heard of crackling. Could you post the question either way and I will take a look?
The only thing I could think you are talking about is Cat. Cracking. Other than that I have never heard of crackling. Could you post the question either way and I will take a look?
Ooooooops, I might of read it wrong the first time... It is cracking, my bad :P
I was looking through this National 5 Question book and it asked me a question about a process or something called "Crackling". I am certain I wasn't taught that in chemistry this year, Did you know anything or did you need to know anything about it when you were in nat 5 ?
Cracking i really breaking down a long chained hydrocarbon into smaller ones. You need to know it breaks it down into an alkene and alkane. If they ask you what one it is just count the number of hydrocarbons until you get the correct number (if that makes sense).
Both, like I never know when to use which one and then some questions just do not make sense to me at all
For mole calculations they may want you to find out the mass of one and give the concentration of another thing. You must find the number of moles (n) to do this as it links both calculations. It's hard to go over here but I'm sure if you ask your teacher to go over it with you. Really what I am saying it find the number of moles of the thing you are given using te right formula ie. if they talk about concentration do n=cxv then use that do do what they ask (hoped that helped)
For mole calculations they may want you to find out the mass of one and give the concentration of another thing. You must find the number of moles (n) to do this as it links both calculations. It's hard to go over here but I'm sure if you ask your teacher to go over it with you. Really what I am saying it find the number of moles of the thing you are given using te right formula ie. if they talk about concentration do n=cxv then use that do do what they ask (hoped that helped)
Thank you, but I just realised it's calculations from equations I struggle with! I'm not too sure on them.