Guys, how have you lot studied all the equations and catalysts and all that?

Also, what's meant by the term high volatility?

One disadvantage if the volatility of petrol is too high.

Reply 83

.raiden.

10

Original post by chigyy

Guys, how have you lot studied all the equations and catalysts and all that?

Also, what's meant by the term high volatility?

One disadvantage if the volatility of petrol is too high.

Volatility is ease for liquid to turn into a gas

Reply 84

chigyy

19

Original post by raiden95

Volatility is ease for liquid to turn into a gas

Cheers

Reply 85

TheFootyKing19

10

Define nucleophile?
State two methods of CCS?
Give the conditions to make margerine?
What is the bond fission in radical substitution?
Define homologous series?

Reply 86

Gotzz

13

Original post by TheFootyKing19

Define nucleophile?
State two methods of CCS?
Give the conditions to make margerine?
What is the bond fission in radical substitution?
Define homologous series?

Electron pair donor.
CCS? Not sure if I've covered this yet.
Margarine is made by catalytic hydrogenation of unsaturated vegetable oils. It requires the addition of hydrogen and a nickel catalyst.
Homolytic fission.
Homologous series = a series of organic compounds with the same functional group but with each successive member differing by CH2.

Reply 87

Happy03

Original post by TheFootyKing19

Me too what did you get on previous 2?

Good luck!

Hi I got Us both times not sure how was so confident second time round :frown:

wbu? And thanks you too :smile:

x

Posted from TSR Mobile

Reply 88

furryface12

21

Original post by TheFootyKing19

Define nucleophile?
State two methods of CCS?
Give the conditions to make margerine?
What is the bond fission in radical substitution?
Define homologous series?

What on earth is CCS?!

Posted from TSR Mobile

Reply 89

Loiks94

11

Is anyone else finding unit 2 easier than unit 1?

Reply 90

SchoolKid.

11

Original post by Loiks94

Is anyone else finding unit 2 easier than unit 1?

At first I found Unit 2 soooo much harder than unit 1 but now it only seems slight harder.

Reply 91

That_Clever_Guy

2

Original post by Loiks94

Is anyone else finding unit 2 easier than unit 1?

Yeh unit 2 is more interesting in my opinion :smile:

Reply 92

.raiden.

10

Original post by Loiks94

Is anyone else finding unit 2 easier than unit 1?

No way unit 1 was too easy :eek:

Reply 93

Loiks94

11

Original post by raiden95

No way unit 1 was too easy :eek:

I guess it was but even in biology and physics the Unit 2's are easier, even though there is more content they just ask you the simplest questions as they have to cover 100 marks. What did you get in unit 1 chem and how are you finding unit 2?

Reply 94

.raiden.

10

Original post by Loiks94

I guess it was but even in biology and physics the Unit 2's are easier, even though there is more content they just ask you the simplest questions as they have to cover 100 marks. What did you get in unit 1 chem and how are you finding unit 2?

I got 76 in unit1 which is a low A, disappointed about the type marks I had lost unit 2 is a lot harder in my opinion, so much more to remember! Yourself?

I do physics too, do you do aqa? :smile:

Reply 95

GeneralOJB

Got an A in unit 1. I always work hardest for chemistry and get the lowest marks. Wish it came as naturally as maths and physics.

and I hate memorising catalysts.

Reply 96

.raiden.

10

Original post by GeneralOJB

Got an A in unit 1. I always work hardest for chemistry and get the lowest marks. Wish it came as naturally as maths and physics.

and I hate memorising catalysts.

Exactly the same here, my marks in maths and physics were much better compared to chemistry