Direct Proportionality up until 0.7n/dcm3, with an anomalous result in experiment 3.

With each 0.1 increase the temperature increased by 5degrees

Maximum ΔT(temperature change) or energy output for the given exothermic reaction had been reached

(edited 8 years ago)

Reply 743

50ph1a

Original post by sushiman123

For the ions test I wrote like
Iron (II) ions Sulfate ions
Instead of Iron (II) Sulfate
Don't ask why I have no idea.
Will I still get the marks?

Omg same!

Reply 744

Nc_x

Guys for the filling in the gap questions the second gap was carbon 12 but I wrote the symbol C with it's atomic and mass number '6' and '12' would I still get a mark?

Reply 745

Tuffyandtab

What did we right for the question on B3 about comparing the 2 methods of getting the concentration of barium hydroxide? (5 marks) I found that difficult.

Reply 746

ciarayh

Original post by rumana101

for the first question on c3 were they asking for the actual names of the elements of the symbols?

i think the words but they more often than not allow both, they will allow the symbols cos it was a chem exam, i did words because i think its clearere, it would be mean to disallow either

Reply 747

50ph1a

Original post by Palette

Would

1) fuels
2) production of esters for perfumes

get two marks?

I put that too, scared they might say no as it is sort of given

Reply 748

Dropthebase

Original post by neil20143

Didn't see a thread for the C2 & C3 thread so thought I should start one! How are you guys feeling about the Thursday exam? Predictions? Good exam tips? Post them here!

I thought the tests were easy does someone want to make an unofficial mark scheme?

Reply 749

Dropthebase

Original post by ciarayh

i think the words but they more often than not allow both, they will allow the symbols cos it was a chem exam, i did words because i think its clearere, it would be mean to disallow either

It said the symbols of the elements not the words

Reply 750

morrissies

Original post by LauraAdrianna

How did you guys find the exams today ?????

I found C2..... weird. It wasn't necessarily hard or easy it just seemed strange.
The six marker really really threw me and I know I got the empirical formula wrong. I was hoping to get around 48/60 but I think I'd be lucky to get 42 at a push.
Hopefully my B2 and physics will save my grade!!!

Reply 751

ciarayh

Original post by chloemurphy1999

for c3 what were the uses of ethanol? You had to give 2 but i could only remember fuels :frown:

i put in perfume and as a solvent xx

Reply 752

Dropthebase

Original post by morrissies

was the empirical formula br3o2?

Reply 753

MadHannah23

If you added up the scores for C1, C2, C3 and ISA, how many marks out of 230 do you think it will be for an A?
I know we haven't done C1 yet but just based on these papers and last years grade boundaries?