OCR gateway chemistry gcse (triple)
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Yeah, the one about mass spectroscopy had two answers and the textbook says both in it as well
Original post by K0302
was it just me who thought that some of the multiple choices could be a couple of the answers?
polyamide
Original post by giniw
what was kevlar? a poylmer or polyamide?
It was a polyamide because it has the amide link (-CONH-)
Original post by giniw
what was kevlar? a poylmer or polyamide?
Yes it was
Original post by HamyHD1
was nanoparticles 80?
No but in the multiple choice it said charge to mass ratio when it is actually mass to charge. Think it is to deliberately trip people up
The condensation polymérisation one really confused me (my own fault for not revising it enough I guess 
)
)Don't remember that question...maybe I just forgot. Was this on triple higher?
I mean the charge to mass one
I mean the charge to mass one
It was just the multiple choice about mass spectrometry
Original post by Bignibba445
Don't remember that question...maybe I just forgot. Was this on triple higher?
I mean the charge to mass one
I mean the charge to mass one
its a polyamide
Original post by giniw
what was kevlar? a poylmer or polyamide?
Minus the pH of water one - what did ya write for that?
Original post by Jay Tommy
CRAP! I wrote polyamide but then crossed it to write polymer (hopefully that is still a mark?)
I just thought that how can amino acids make a vest, I mean, it can't be made of proteins right?
But ik it was a stupid thought, ah well
Rest of the paper was a gift from God (:
I just thought that how can amino acids make a vest, I mean, it can't be made of proteins right?
But ik it was a stupid thought, ah well
Rest of the paper was a gift from God (:
I wrote composite :/
Original post by ingrid23
its a polyamide
Original post by person1143
No but in the multiple choice it said charge to mass ratio when it is actually mass to charge. Think it is to deliberately trip people up
I am not so sure but what did you put because i swear to god i read it as mass to charge i went through it twice.If i mess this up.
I am actually done
Original post by Jay Tommy
CRAP! I wrote polyamide but then crossed it to write polymer (hopefully that is still a mark?)
I just thought that how can amino acids make a vest, I mean, it can't be made of proteins right?
But ik it was a stupid thought, ah well
Rest of the paper was a gift from God (:
I just thought that how can amino acids make a vest, I mean, it can't be made of proteins right?
But ik it was a stupid thought, ah well
Rest of the paper was a gift from God (:
I was just trying to decide between polyamide and polymer - so i faced the same dilemna i hate these type of questions urgh.I put polymer in the end because both are technically right and i got scared thinking i might get no marks if i put both of them in?
Can anyone remember what they put for the 6 marker, i put about particles
-if conc increases there are more particles
-makes more likely to have a successful collision
-the collision of particles is the reaction occuring
-it seems that the volume has no effect on the rate (use the numbers) blah blah
-if conc increases there are more particles
-makes more likely to have a successful collision
-the collision of particles is the reaction occuring
-it seems that the volume has no effect on the rate (use the numbers) blah blah
Yep I said the exact same thing and some other waffle
Original post by izzym026
Can anyone remember what they put for the 6 marker, i put about particles
-if conc increases there are more particles
-makes more likely to have a successful collision
-the collision of particles is the reaction occuring
-it seems that the volume has no effect on the rate (use the numbers) blah blah
-if conc increases there are more particles
-makes more likely to have a successful collision
-the collision of particles is the reaction occuring
-it seems that the volume has no effect on the rate (use the numbers) blah blah
I swear the exam was a mix between a godsend and some of it not being on the spec
Also what did you say for the ammonium sulfate crystals questions, as to how she can make them pure
Also what did you say for the ammonium sulfate crystals questions, as to how she can make them pure
i sed use a steam bath
Original post by Bignibba445
I swear the exam was a mix between a godsend and some of it not being on the spec
Also what did you say for the ammonium sulfate crystals questions, as to how she can make them pure
Also what did you say for the ammonium sulfate crystals questions, as to how she can make them pure
I’m pretty sure it said charge to mass but maybe I am wrong- I put D
Original post by hard_crap
I am not so sure but what did you put because i swear to god i read it as mass to charge i went through it twice.If i mess this up.
I am actually done
I am actually done
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