The 2004 HSC - Chemistry Paper (1 Viewer)

withoutaface

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There was a 7 mark question on the ozone layer and CFC alternatives that I couldn't for the life of me see how more than 5 marks were allocated. Overall it was a long test with too many extended responses, but otherwise fine.
 

grimreaper

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I think its good to have a few extended response sort of questions.. sorts people out
 

Xayma

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withoutaface said:
There was a 7 mark question on the ozone layer and CFC alternatives that I couldn't for the life of me see how more than 5 marks were allocated. Overall it was a long test with too many extended responses, but otherwise fine.
A mark or two was probably for the formulas showing the removal of ozone by chlorine, probably another for defining each CFC, HCFC, HFC in that usual fashion. And with that I won't post in the chemistry exam thoughs, cause I loved it and seeing MC answers would make me backtrack my mind and I hate that.
 

withoutaface

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grimreaper said:
I think its good to have a few extended response sort of questions.. sorts people out
mmm, sorts us into the humanities/english minded and the maths/science minded. Which one of those do you think should be suceeding at chemistry?
 

withoutaface

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Xayma said:
A mark or two was probably for the formulas showing the removal of ozone by chlorine, probably another for defining each CFC, HCFC, HFC in that usual fashion. And with that I won't post in the chemistry exam thoughs, cause I loved it and seeing MC answers would make me backtrack my mind and I hate that.
Yeah I wrote down the formulae for ozone depletion, then I defined CFC's and gave examples of their use, and the said that Hydrochloroflurocarbons are less likely to release chlorine into the atmosphere than CFC's and as such were better than CFC's, and then went on to say that Hydroflurocarbons were the most suitable because they had no chlorine
 

grimreaper

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I dont think that question in particular was a bad one, as it was testing your knowledge of chemistry. But yeah from memory there were a couple of dumb "assess" questions which dont really belong in a "chemistry" exam
 

withoutaface

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I reckon overall I'll get somewhere around the 80% mark

EDIT: Can someone who's done a fair few past papers comment on the difficulty compared to previous years?
 
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matt_f64

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that is really bad quality whoever put that paper up... its ok for a quick glance but noway is neone gona print that off...
 

withoutaface

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matt_f64 said:
that is really bad quality whoever put that paper up... its ok for a quick glance but noway is neone gona print that off...
Scan it up yourself if you're going to bitch...
EDIT: And after looking at them a second time they aren't bad quality either, I dunno what you're talking about man
 

matt_f64

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ok ill just u know, get the chemistry paper out of my arse..... seeing as i dont do chemistry and am just having a look at the paper, shut ur hole.
 

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withoutaface said:
Yeah I wrote down the formulae for ozone depletion, then I defined CFC's and gave examples of their use, and the said that Hydrochloroflurocarbons are less likely to release chlorine into the atmosphere than CFC's and as such were better than CFC's, and then went on to say that Hydroflurocarbons were the most suitable because they had no chlorine
ah, wah?? i'm so glad i dropped chemistry last year!! that would have been 4 exams in one week! :eek:

hope everyone survived it!! :)
 

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