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AQA CHEM2 ~ May 23rd 2012 ~ AS Chemistry

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Reply 560

berryripple

Original post by Mocking_bird

You mean you've not been taught it or you just don't understand it?
If you need any help, feel free to ask :smile:

haven't been taught it - will have to be a matter of making notes from the textbook. Thank you! :biggrin:

Reply 561

Luppy021

Original post by clownfish

Couple of edits to these for you:

Oxidising agent and reducing agent are the wrong way around. The oxidising agent causes something to be oxidised, ie an oxidising agent takes electrons from something.

Also disproportionation: an atom cannot be both oxidised and reduced, it shols be a species or element that is oxidised or reduced.

:smile:

Ah yeah sorry my bad, I knew the definitions just typed them wrong

Reply 562

mobes

Original post by Mocking_bird

You mean you've not been taught it or you just don't understand it?
If you need any help, feel free to ask :smile:

i need some help, can i have ur email please :smile:

Reply 563

Mocking_bird

Original post by mobes

i need some help, can i have ur email please :smile:

It would be easier to just post it here or pm me :biggrin:

Reply 564

joker_di

Original post by Mocking_bird

Finished the isa today... finally on to the end! :smile:

There was quite a tricky question (which had the majority of our class stumped), but the rest was fairly easy.
I made a silly mistake, only 1 mark, but besides that I feel kind of confident about it.

So yeah, good luck to everyone yet to do :smile:

Hiya! I will be having the practical test next wednesday but have no idea what it's going to be! What substance are we going to be tested for? Any hints for the practical and the written test?! Thx!!

Reply 565

username890104

Original post by joker_di

Hiya! I will be having the practical test next wednesday but have no idea what it's going to be! What substance are we going to be tested for? Any hints for the practical and the written test?! Thx!!

This isn't happening. :smile:

Reply 566

Part A

Original post by joker_di

Hiya! I will be having the practical test next wednesday but have no idea what it's going to be! What substance are we going to be tested for? Any hints for the practical and the written test?! Thx!!

You're such a joker! (see what I did there..)

Reply 567

starfish232

Just wondering anyone has a good way of remebering the equations for extraction of metals and as they just don't stick in my mind except the extraction of tungsen equation.

Thanks!

(edited 11 years ago)

Reply 568

3.14Pie

Has anyone finished revision for all of their subjects?

Also did the jan 2012 mock today, feeling quite good about it :smile:

Reply 569

Mike Hunt is nice

Its quite funny, by the time i got to Infared Mass spectrometry, i'd forgotten the the chapters of this Module.
Has anyone else found that things are really hard to learn, but veryvery easy to forget?

Reply 570

Mocking_bird

Original post by Mike Hunt is nice

In a way, but just try and practice the mechanisms/write out the reactions daily and they'll stick eventually.. it's what i've been doing recently and its helped a lot.

(Edit... I reread this and can't tell if youre talking specifically about infared or not :laugh:

my brains dead... oh well either way, theres a tip :tongue:

)

Original post by Mocking_bird

It would be easier to just post it here or pm me :biggrin:

Like the mockingbird blog!! The name and the content :tongue:

Reply 573

Hippysnake

I remember being in your lot's position almost 3 years ago. Best of luck!

Reply 574

Mike Hunt is nice

Original post by Mocking_bird

my brains dead... oh well either way, theres a tip :tongue:

)

Lol, Mechanisms are actually okay.
No, i mean once i finished the last topic in unit 2, i'd forgotten the first topic lool.
It actually quite funny really.

Reply 575

alilonghorn

Mechanisms have always been the bane of my existence, but I am slowly working my way through them and I now finally understand Free Radical Substitution and Nucleophilic Substitution! :jive:

So pleased, pretty sure the fact I had no idea how to do mechanisms the first time I did AS Chem was one of the main reasons I got a U! :colondollar:

Reply 576

cuckoo99

Original post by starfish232

Just wondering anyone has a good way of remebering the equations for extraction of metals and as they just stick in my mind except the extraction of tungsen equation.

Thanks!

WO3 + 3H2 ----> W + 3H2O
Hazards: Explosion
Its the only reduction involving hydrogen :smile:

Reply 577

cuckoo99

Original post by alilonghorn

Mechanisms have always been the bane of my existence, but I am slowly working my way through them and I now finally understand Free Radical Substitution and Nucleophilic Substitution! :jive:

So pleased, pretty sure the fact I had no idea how to do mechanisms the first time I did AS Chem was one of the main reasons I got a U! :colondollar:

Unlucky :/ did you redo AS alongside A2? or just redid AS?

Reply 578

alilonghorn

Original post by cuckoo99

Unlucky :/ did you redo AS alongside A2? or just redid AS?

Just redoing AS, same for biology! My teacher would of let me do it alongside A2 but I decided I'd rather do the whole year and get a good grounding for A2. Seems to have been the right decision as I'm finally getting the results I want, just hoping it continues in chem2 and f212 :unsure:

Reply 579

Mocking_bird

Does anyone have any good ways of learning all the reactions/tests for halogens and alkali earth metals?
(I mean in terms of say... mmenomics or something like that, it would just make it a ton easier :laugh:

)

They just arent sticking in my head no matter what i try.