[gayboy1231231]

Polyethene is not biodegradable

[ThatPerson]

urgh. It's going to be a nightmare waiting for August 23rd! I think I've done pretty badly for my expectations(Which were pretty damn high I have to say!).

[emmaappleton]

i have to wait till school starts till we get ours back... results day is 'year 11s' day.. its gounna be so hard to wait!

[MrDude151]

(Original post by XtremeLuke)
For the question about the limestone in the kiln, I put that the answer was: Carbon Dioxide and Water Vapour. However a lot of people have put an oxide of nitrogen, at first glimpse I thought it was this, but realised there was no mention of High temperatures and this would also make the Methane absolutly pointless to have been mentioned.

Did anyone else get this? Am I wrong?

It all gets burned, quite got I would say, however. It may not be hot enough for Nitrous oxide :/

[XtremeLuke]

(Original post by DON5)
The question did mention that it needed a high temp to react the limestone. I put in carbon dioxide and nitrogen oxide.

Did it? Whoops I must of missed that, maybe I got that wrong? Unless Water Vapour still counts!?

[ma1996leb]

what did everyone get for the last last question

[bd fan]

nearly 3 months till we get the results, the wait is gonna be unbearable

[bd fan]

(Original post by DON5)
The question did mention that it needed a high temp to react the limestone. I put in carbon dioxide and nitrogen oxide.

can u say oxides of nitrogen, because the nitrogen was oxidised during the burning.

And can u say CO2 was produced as the limestone thermally decomposes, and the carbon in methane oxidises to form CO2

[Crystallouise99]

(Original post by Navdeep)
You know the question when it said, why was argon used instead of air? I said that it's unreactive? But some people at my school said it was something else..?

That's what I put. Argon is very unreactive element(Noble gas). It therefore does not react with the metal compounds and metals in the reactor. Whereas air contains impurities and other gases, such as Oxygen which react with the compounds and metals in the reactor.

[Crystallouise99]

(Original post by Allison.)
what did you guys get for those graph q's? the first one, that asked to calculate the mass and the second one on the next page with the titanium metal impurity thing? i got 240 for the first one and 750 on the second one, but i think it's wrong...?

240 on the first calculation question and 250kg on the next.
That's what some people in my class got as well, hoping it is right

[Kamran786]

yup thats what i got hoping for an A if not an A* but doubt wil get that, just will stick with the A

[Allison.]

(Original post by Crystallouise99)
240 on the first calculation question and 250kg on the next.
That's what some people in my class got as well, hoping it is right

oh well...hopefully they'll lower the grade boundaries to make it easier to get an A..

[Crystallouise99]

What did people get for the reason for weak evidence of the Milrey-Urey Experiment.

[tom.h54321]

It's funny how one graph can produce so many answers:L

[MajorRisk]

Anyone got any advice on the ISA's?? Or another thread to link to? or any other knowledge on them?? Much appreciated.

[e16]

The graph questions were just 1 mark weren't they?:s i think I've got it wrong :/


This was posted from The Student Room's iPhone/iPad App

[tohaaaa]

yep, both of the mass ones were 1 mark each!

[Saraxo]

(Original post by e16)
The graph questions were just 1 mark weren't they?:s i think I've got it wrong :/


This was posted from The Student Room's iPhone/iPad App

yeah they were only 1 mark, im sure ive got one of them right. no idea why the graph question is causing such debate it was only one mark:s


This was posted from The Student Room's iPhone/iPad App

[rubitude]

THIS WAS SUCH A GREAT EXAM! I was worried because i did horribly in biology
but it was sooooo similar to the specimen paper and the Jan 2012 paper!
hope i did well

[tingirl]

(Original post by Crystallouise99)
What did people get for the reason for weak evidence of the Milrey-Urey Experiment.

(Original post by Saraxo)
what did everyone put for why miller and ureys experiment was weak ?

I said that we can't be certain what the conditions on Earth were like when life formed.

99.9% sure that's wrong though!

Was it a two mark question?