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Recent content by Sean Tan
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Sharing my CIE A2 Paper 4 Biology Topical Past Years 2002-2015 Summer and Winter
That's great! I'm glad I helped you! -
Sharing my CIE A2 Paper 4 Biology Topical Past Years 2002-2015 Summer and Winter
No problem! Glad it helped =D -
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Chemistry 52? Discussion after 24 hours
Don't worry! I'm sure they'll be more lenient towards the marking procedure. The grade threshold's probably gonna be lowered dramatically. I've done all the past years for P4 and i can assure you the paper wasn't easy. Stay calm =) -
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Chemistry 52? Discussion after 24 hours
1. For the anomaly, i said it is caused by a decrease in volume of liquid Y, (as we are only using a very little amount of liquid Y in g) to minimise the anomaly, i suggested increasing the mass of liquid Y used, as that would reduce the percentage error. Many suggested using ice to condense the... -
Chemistry 52? Discussion after 24 hours
The more exothermic the reaction, the more feasible the reaction (as less heat is required for the reaction to proceed to the RHS). This correlates with the Ecell values. The reaction between Zn and Cu2+ is really feasible as Zn is a strong reducing agent, Zn will reduce Cu2+ to Cu metal. That... -
Chemistry 52? Discussion after 24 hours
I wrote as Ecell increases, delta H becomes more exothermic -
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How was Chem P4? 9701/42
Yes, that's about right. Don't worry, we'll get through it :) -
Sharing my CIE A2 Paper 4 Biology Topical Past Years 2002-2015 Summer and Winter
Hi everyone. This is something which I've prepared and have helped many students, and they actually liked reading these instead of doing the past years. That's because the syllabus has changed, and not many knew which syllabus has been removed. Also it is time consuming, and many preferred to... -