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Primrose Kitten Combined Chem Paper 1GCSE Predicted Paper

Has anyone done the combined Chem Paper 1 GCSE Predicted Paper from primrose kitten academy and if so could some explain question 4b.

Thanks.
Original post by Es-Sk
Has anyone done the combined Chem Paper 1 GCSE Predicted Paper from primrose kitten academy and if so could some explain question 4b.
Thanks.

whats the question?
Reply 2
Original post by dfdfdfdfdsa2
whats the question?



"The balanced equation for the extraction of aluminium from aluminium oxide, Al2O3, is:
2Al203 4AI + 302

2500kg of aluminium oxide was electrolysed. (Relative atomic masses (Ar): Al = 270 = 16)
Work out the expected mass of aluminium produced. Give your answer in kg.
Original post by dfdfdfdfdsa2
whats the question?

Hi I hope the exam went well. Did you do aqa. Was the predicted papers accurate. Wondering if they are worth buying as on limited funds but found chemistry hard.
Reply 4
Original post by jewelstone55
Hi I hope the exam went well. Did you do aqa. Was the predicted papers accurate. Wondering if they are worth buying as on limited funds but found chemistry hard.

Exam went well. I do aqa. The questions were very similar and there was even at least one that was the same. I think its a no brainer to get them as the predictions for both biology and chemistry and have been good so far.

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