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my burning it if it produced flames it would be alcoholdo v need 2 noe test 4 alcohols?
its today at 3 pm btw in KSA it ends at 4when will the first chemistry paper 6 variant 1 end??
For O/N 2011 PAPER 62 you donot have to mention the step for concentration just write that calculate it
The other I am just going to answer nw ,i answered this question as I just solved it now.
For paper 63 just mention it is a carbonate ,and write metal no need to go in detail dude ,its transition or whatever,write a metal name okey ,transition was mentioned as Iron in it.
To question 6 paper 61 you have to reweigh it they have mentioned it there that means you can put on electric balance.
Question 5 (e) = non transition , because solid E is calcium carbonate .. so calcium is NOT a transition metal ..
Question 6 = every markscheme since 2002 has this way of measuring the volume, so learn this its better
Question about concentration = its the same as the above
YES IT DOES, titration is quantitative meaning that certain number of particles react with each other. Suppose you have two classrooms(acid) of the same size(same volume in experiment) you're going to give them apples(solution), the class that takes more apples(more solution) means that it contains more students(particles) so it is the more concentrated.chemistry: The most concentrated acid needs the most volume of solution to neutralise??? plz help
if they say refactive index in the glass use sin r/sin i if they said refractive index to air its sini /sin rHey guys, I would really appreciate if someone would look into the Physics Winter 2008 paper, question 6b) It asks for the angle of refraction which is obviously using the formula n=sin i/sin r BUT in the mark scheme it says use n=sin r/sin i OR n=sin i/sin r in any form and then it goes on to show the answer for sin r/sin i which makes no sense. Why have they used the formula the other way around?
Thanks!if they say refactive index in the glass use sin r/sin i if they said refractive index to air its sini /sin r
if they say refactive index in the glass use sin r/sin i if they said refractive index to air its sini /sin r
PLZ HEEEEELLPP
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w08_qp_03.pdf
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w08_ms_3.pdf
q 1 d ii) my answer was 0.72 but it was wrong although i used speed=dist/time the correct answer was 0.36 WHYYYY plzzzzz help me
q 5 c) how do we get the answer????? plzzz tell me the steps
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