This discussion is now closed.

Check out other Related discussions

AQA GCSE Chemistry Paper 1 8462 Higher - 16 May 2019 Unofficial Markscheme

Scroll to see replies

Because oxygen produced reacts with the carbon electrode at the high temp to produce carbon dioxide

Bewhat was the answer for why the positive elctrode had to be replaced? I said because gas is produced at the positive electrode and it can corrode the electrode

Reply 21

Sarahpod8

Original post by ettamagill

Post your answers for questions for TRIPLE AQA from today x

What was the copperoxide question about? With the burning hydrogen?

Reply 22

hjames2003

What did people get for that weird oxide reaction question

Reply 23

Anthos

I think I got 0.31 and 17.36 or something for the last 6 marker. Everyone else got 0.62, so I must have forgotten to double it or something due to the moles being twice the reactants.

Reply 24

username4674880

It was a fairly hard paper

Reply 25

imdibbyy

i got 6.1177777 so it was very close to 6.2 so did people just round up plz tell me ?

Reply 26

sashalewiss

yes i got that too-hopefully we only lose 1mark for that and not 2 lol

Original post by Anthos

I think I got 0.31 and 17.36 or something for the last 6 marker. Everyone else got 0.62, so I must have forgotten to double it or something due to the moles being twice the reactants.

Reply 27

sim_c1

I got 941kg on the 2000kg Aluminium Oxide question and -1002 on the bond energy

Reply 28

Gcsefailure7776

Original post by mosquito1234

For the last question I got 0.62 mol/dm^3 and 69.44 g/dm^3 for the last question, but the second one is wrong

I got 0.6 and then 33 point something

Reply 29

sashalewiss

what did you all get for whats seen in the reaction between sodium and chlorine?? stumped me tbh

Reply 30

OptimisticMedic

Original post by sim_c1

I got 941kg on the 2000kg Aluminium Oxide question and -1002 on the bond energy

Original post by sashalewiss

what did you all get for whats seen in the reaction between sodium and chlorine?? stumped me tbh

I said you will see an ionic compound form Sodium chloride

Reply 31

Pooooooooo

I got 941.2

Original post by sim_c1

I got 941kg on the 2000kg Aluminium Oxide question and -1002 on the bond energy

Reply 32

OptimisticMedic

What did you guys get for the question before the one where it said whether equation 1 or 2 was right?

Reply 33

Billy855

What did everyone get for the standard form question

Reply 34

ridaax

Original post by OptimisticMedic

What did you guys get for the question before the one where it said whether equation 1 or 2 was right?

For equation 2 wbu

Reply 35

OptimisticMedic

Original post by ridaax

For equation 2 wbu

Yh but what about the one before that.
Hard to remember but it was two two mark questions and you had to use the results to calculate how much copper oxide and how much hydrogen?

Reply 36

ridaax

Original post by OptimisticMedic

Yh but what about the one before that.
Hard to remember but it was two two mark questions and you had to use the results to calculate how much copper oxide and how much hydrogen?