But apparently the different equations are different because they give you the reactions from a different perspective- e.g. your revision guide's reactions may be from positive to negative electrode whilst mine's could be from the negative to positive electrode. I'm not sure how this affects the equations though but this was what I was told. If I were you, I would learn the equations in your revision guide since there's a chance the specimen is wrong
This is the way that it describes it in my revision guide. I have the Collins one
But apparently the different equations are different because they give you the reactions from a different perspective- e.g. your revision guide's reactions may be from positive to negative electrode whilst mine's could be from the negative to positive electrode. I'm not sure how this affects the equations though but this was what I was told. If I were you, I would learn the equations in your revision guide since there's a chance the specimen is wrong
so basically there are loads of different answers, great! the specimen (if it was correct) should of taken that into account! It's really worrying since I literally spent ages drilling those equations into my head :L
So what does everyone predict will be the 6-markers for the test tomorrow?
It is hard to say considering we are the first to sit the exam, however my teacher said if he was an examiner he would chose: C4 - ionic and covalent bonding and have to draw one C5 - a titre equation and working out concentrations C6 - ozone layer and chlorine radicals etc
Please can somebody explain to me about CFCs and their effect on the ozone layer and also how they break down by UV radiation as I don't understand that whole page of the bok
It is hard to say considering we are the first to sit the exam, however my teacher said if he was an examiner he would chose: C4 - ionic and covalent bonding and have to draw one C5 - a titre equation and working out concentrations C6 - ozone layer and chlorine radicals etc
I would love it to be those three. I'm just so nervous for this exam, I can't get any of the equations stuck into my head
so basically there are loads of different answers, great! the specimen (if it was correct) should of taken that into account! It's really worrying since I literally spent ages drilling those equations into my head :L
True, but nobody's actually say the specimen exam and its initial purpose was to provide schools with an idea on how the exam would be set out...in our exam, they probably will take into account the different answers (although my chemistry teacher emailed OCR regarding this and they said it doesn't matter apparently)...