[AGrumpyMole]

(Original post by Zhy)
Did people put gas for bromine vapour? I remember in the F331 mark schemes that water vapour was given as a gas, not liquid. They'll probably accept both though.

the word vapour kinda gives it away.
(gas)

[Beffnaay]

Yeah, it's water vapour (water as a gas). That's why steam comes from kettles etc? :s

[Reina]

(Original post by ManPowa)
You could also put crude oil. would that be right?

Wasn't the question asking for an agricultural source?

[megank]

(Original post by csefton3)
Couple of things:

For the reagents and conditions question it asks for the reagents and conditions when water is added. WATER. Not steam. So phosphoric catalyst pathway is wrong... concentrated sulfuric acid at room temp and pressure is right.

Compound D cant be used as a cleaning solvent because is can only form the weakest type of intermolecular bond (id-id) with the substance its trying to clean.

Oh and also, source of methane: farming rice paddy fields.

I thought phosphoric acid is still right.. it says that in the revision guide

[TheStudent.]

(Original post by Zhy)
I wish. But my answer did include the word "poo" three times. Do you lose marks for obscenities?

Yeh i was going to write 'fart'. But decided to say waste gas instead lol.

[TheStudent.]

(Original post by megank)
I thought phosphoric acid is still right.. it says that in the revision guide

Dont worry, its right...

I've got amazing telepathic skills.

[Kenyan]

what did people write for the question that asked for the partial charges on fluorine and chlorine

[Reina]

(Original post by megank)
I thought phosphoric acid is still right.. it says that in the revision guide

Phosphoric acid is right, just another method.

[megank]

(Original post by AGrumpyMole)
116,667

Yay got that but i rounded it up to 120 000 hope its still right :P

[examtalk]

(Original post by TheStudent.)
Yeh i was going to write 'fart'. But decided to say waste gas instead lol.

I said when cows flatulate (pass wind) in cattle farming hahaa

[Reina]

(Original post by Kenyan)
what did people write for the question that asked for the partial charges on fluorine and chlorine

Labelling the diagram?

C was slightly positive and the F and Cl atoms were slightly negative.

[Alice321]

i just put cows

[AGrumpyMole]

Someone make a complete markscheme pleasee

[dongonaeatu]

(Original post by Alice321)
i just put cows

just cows?

[Kenyan]

.. dont the fluorine make the chlorine positive ?

[sharon800]

(Original post by Kenyan)
what did people write for the question that asked for the partial charges on fluorine and chlorine

i just put delta+ on carbon a a delta minus on all other
the explaination i gave was :- the electronegativities of the atoms, c is more electronegative than c

[TheStudent.]

(Original post by Kenyan)
.. dont the fluorine make the chlorine positive ?

nope

[megank]

(Original post by Kenyan)
.. dont the fluorine make the chlorine positive ?

Nah, i think C is positive and all others are negatives

[Kenyan]

argh :| that means i just 7 marks..

[dongonaeatu]

(Original post by Kenyan)
.. dont the fluorine make the chlorine positive ?

no