I found some of the questions okay, but I think they definitely tried to make the paper harder by adding loads of longer answer questions. What did you put for the hardening vegetable oils question and the question about improving the experiment with the spirit burner (Calorimetry) ?
I found some of the questions okay, but I think they definitely tried to make the paper harder by adding loads of longer answer questions. What did you put for the hardening vegetable oils question and the question about improving the experiment with the spirit burner (Calorimetry) ?
Huh but there were no questions on vegetable oil and calirometry??????
You definitely got one mark for your advantage, but I think your disadvantage is a bit vague. I put that it burns with a lot of energy, more so than petrol.
Also, for the Pentane combustion question, would I get a mark if I doubled the balancing numbers?
Also what did you put down for the CO2 and Average surface temperature question?
The PTFE molecule was just the original molecule (can't remember the name) in brackets and without the double bond.
I totally flunked the combustion question as i ended up confusing myself haha.
The CO2 and average surface temperature was really confusing so i just guessed and put that because the CO2 has increased by over a 100% and that the average surface temperature only increased by 0.4.
The PTFE one asked for two molecules of it so it was: f f f f
-c-c-c-c- f f f f
(Can't really draw it very well but there were brackets around it as well)
Hope this makes sense
I found the test to be really nice as a whole, the six markers were a little vague but there were many points to be made so hopefully more can be picked up from it.
I don't think you'd get the mark for saying cracking. I put microorganisms can decompose/break down polymers into tiny pieces in the soil if they contain starch granules
The PTFE one asked for two molecules of it so it was: f f f f
-c-c-c-c- f f f f
(Can't really draw it very well but there were brackets around it as well)
Hope this makes sense
I found the test to be really nice as a whole, the six markers were a little vague but there were many points to be made so hopefully more can be picked up from it.
So hang did we have to draw two conjoined molecules for the polymer not just
( c -c ) with the the f's attached but two of them, if that makes sense?
I don't think you'd get the mark for saying cracking. I put microorganisms can decompose/break down polymers into tiny pieces in the soil if they contain starch granules
Do you think we could have said, recycled. i was tempted to go with incinerated but couldn't decide which they preferred?