AS Chemistry- helping each other out!

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Can someone explain the electrophillic addition of bromine water to cyclopentene? Thanks

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I think this is how you do it. I may have an arrow wrong way round though, I don't think I do though, maybe someone can verify?

Reply 2701

C0balt

Original post by TheNoobishKnight

I think this is how you do it. I may have an arrow wrong way round though, I don't think I do though, maybe someone can verify?

Love it

Reply 2702

TheNoobishKnight

Original post by C0balt

Love it

lol thanks doing bio revision atm so had to do it quick :P.
So much darn mechanisms i keep confusing them with A2 stuff lol.

Reply 2703

TeaAndTextbooks

Thank you so much, I really needed a diagram and I appreciate this art work lol 😁

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Reply 2704

pinksmartiee

Original post by NotoriousS

Yes I am

It's tomorrow! :-(

Reply 2705

Shadowfire123

im reallly scared im doing edexcel unit 1 and apparently its gonna be the R paper

Reply 2706

SLRR

Did anyone else think the AQA EMPA was really really hard?

Reply 2707

Shadowfire123

Original post by Rstlss

hiiii

Reply 2708

Mr.bob

Original post by LibertyMan

Can someone explain why dipole dipole is the answer

--> If this was NH4+, or CH4, there wouldn't be any dipoles because the molecule is surrounded by the same delta charge, so another molecule cannot be attracted to it as the like charges on the outside of each molecule will repel them away.

However, with CCl2F2, there is dipole-dipole formation. Why? Is it because of the polarity difference between C-F and C-Cl?

And it burns, burns, burns (tabs!)

Reply 2709

LibertyMan

Original post by Mr.bob

And it burns, burns, burns (tabs!)

I'll burn you if you don't answer my question

Reply 2710

Rstlss

Original post by Shadowfire123

hiiii

yeah?

Reply 2711

NotoriousS

Original post by Shadowfire123

im reallly scared im doing edexcel unit 1 and apparently its gonna be the R paper

What's the R paper? any difference?

Reply 2712

C0balt

Original post by NotoriousS

What's the R paper? any difference?

International paper, same content but slightly harder for some reason

Reply 2713

asifa129

Any likely Q's ???
Im really dreading this paper

Reply 2714

NotoriousS

Could anyone tell me what chemical tests we may need to know? AS Edexcel unit 1

Reply 2715

gracebromby

Original post by NotoriousS

What's the R paper? any difference?

How do you know this?

Reply 2716

Super199

Can someone explain dative covalent bonding I have never really got it.
like how do you work out if it is a dative covalent bond and which element is giving the lone pair of electrons
can someone explain using phosphine PH3 to form PH4+.
The specific question is to give the name of the type of bond formed when phosphine reacts with an H+ ion. Explain how it is formed

Reply 2717

BBeyond

Original post by allysid123

does anyone know why the answer to this question is A and not C?

In which of the following series of elements is there an increase in the melting temperatures from left to right?
A) Na Mg Al
B) Li Na K
C)B C N
D) Si P S

carbon has a much higher melting temperature than nitrogen...