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Chemistry 9701 7th may ?
Since it didn't say one MOLE of a product, it's assumed that it was ONE TYPE of a product, as it is in all the previous papers. Either way, both the products are possible, and have 1 organic product, so they're both correct. -
New Format of Exams for 2014?
Actually, the weirdness began Oct Nov 2013. __ Secondly, honestly, the Chem P2 was super super easy. It was different because they asked the crappy and easy thigns no one pays attention to. The exam was filled with EVERYTHING I didn't study because they don't ask it. Luckily I knew all that... -
Chemistry 9701 7th may ?
They don't penalize for spelling mistakes as long as it doens't chagne the meaning of the sentence. Secondly, it should be acceptable. I think the range is from 116-120 or sth. -
Chemistry 9701 7th may ?
Ethane is 109.5 (tetrahederal) and ethene 120 (trigonal planer) -
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Chemistry 9701 7th may ?
It said up in the question that Br 81 is 80.82 (or sth like that) and Br 79 78.82. Abundances were 49 51. -
Chemistry: Post your doubts here!
Hahahh. This is one of my better drawings :p Always sucked at drawings and diagrams and always will. This is why I loathe P5. All my diagrams are so funny it's actually amusing lol -
Practical | GUIDE BOOK(free Download) | POST YOUR DOUBTS HERE.
Let me start off by appreciating the work & the effort. I know it takes up a lot of time and dedication to get something like this rolling. Brilliant job. I'm sure a lot of people out there would've learnt at least one new thing. That said, as an online web news sub-editor, I can spot a lot of... -
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Chemistry: Post your doubts here!
In exam you're supposed to always electrons in terms of addition, not subtraction, even though examiners will often ask you in terms of electrons subtracted. X + e -> X never X - e -> X -
Chemistry: Post your doubts here!
Ok looks like I was mistaken. I just confirmed the CIE amendment to the syllabus for P3. It was the Pb2+ ion that they've removed not SO2. So, K2Cr2O7 will very much be on the reagents bench and you'll have to test for it by soaking the white strips of filter paper. If it turns from orange to... -
Chemistry: Post your doubts here!
Agreed. Although, the paper had a few places where people could drop marks. A lot of people seem to have dropped marks in making the ketone. Another common mistake was in the isomers question. The question asked for 3 different structural formulae of C6H12 that showed cis-trans but a lot of... -
Chemistry: Post your doubts here!
That's no longer part of the A Level practical syllabus AFAIK. They've also removed Pb ions. -
Chemistry: Post your doubts here!
How do you test for SO2 gas? Why would it show up if you're never taught how to test for it -_- -
Nice (y). I'm not the only one who did that heh. OKay. What I did the night prior to my...
Nice (y). I'm not the only one who did that heh. OKay. What I did the night prior to my Commerce exam was: - SKimmed thru online notes. - Did 3-4 P1's. Saw the topics that troubled me and read about them. That's about it.- AbbbbY
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Chemistry: Post your doubts here!
SO2 wont show up. NO2 is brown so you'll know when it shows up. Ammonia has a very distinct, pungent smell. Slightly smelling, not inhaling it all in should tell you whether it is Ammonia or not. I'm not saying you do this, just what I do and end up saving a lot of time and effort. Never done... -
Mathematics: Post your doubts here!
"Scared that the moddy wud appear"? PHAH. Couldn't care less mate. If I'm banned, really, I couldn't care less. I come here primarily to help out in the Chem thread because I throughly enjoy doing that whilst helping people. Don't have anything to lose. I welcome the ban and salute logic if... -
Mathematics: Post your doubts here!
Elementary stuff, that one. O Level Add Math was full of this stuff and it was, in principle, a pretty easy question. A lot of people seem to be troubled by it. I wonder why :/ -
Mathematics: Post your doubts here!
Do you see any answers enlisted? Or the values of the question? Because, really, I don't.