-
We need your support!
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
Search results
-
Physics: Post your doubts here!
I think for this type of question playing around with conservation of linear momentum is the key:) Let's consider a scenario where we first pour the sand into the cart, With the equation: M(cart)*U(cart) = [M(cart) + M(sand)]*V Rearranging the equation therefore we have: V =... -
Hi Princesszahra :D, I just looked through the forum and I noticed that you have been providing...
Hi Princesszahra :D, I just looked through the forum and I noticed that you have been providing people with p5 chemistry solved papers. As for my request, can you please kindly inbox me your solved paper 5 for chemistry? Any help from you will be highly appreciated~ :D E-mail will be...- Frankuzi
- Profile post
-
Can anyone help me with paper 4 chem? :3 (Can use this thread for chem discussion)
I really struggle with paper 4 in chem :(, that's why I need help~ can anyone please kindly help me with O/N/08?:LOL: and please provide me with your best explanation~ I need help with Q.6 (d) part (i),(ii) and (iii) and also Q.10 (a)(i),(ii) and (iii). Phew~ That's a lot:( but I really... -
-
Need help on p3 vectors
Could anyone please kindly post some useful links here regarding vectors or give me some tips on how to solve all the vectors question. -
Chemistry and Physics AS paper 12 MCQS
Student X said that all the 17 carbons on the ring lies on the same plane. Hmmmm~~, I don't think so because there are carbons covalently bonded to 4 groups which makes it tetrahedral(angle:109.5 degree) so they shouldn't be lying on the same plane except when they are planar(angle: roughly 120... -
Chemistry and Physics AS paper 12 MCQS
Hi~ I think I can give a try on phy question. Q.25. I think the answer is B because in transverse wave, the particles are oscillating perpendicularly to the direction of energy transfer so we assume that the movement of the particle is up and down. Therefore at the max. displacement Q, the... -
Chemistry and Physics AS paper 12 MCQS
Thank you and all the best for your exam~ -
Chemistry and Physics AS paper 12 MCQS
Intermolecular forces: (These are from my notes. XD) Van der waals forces: also known as the 'Temporarily dipole-dipole forces'. It is the temporary electrostatic attraction between atoms or molecules due to temporarily dipoles. Dipoles are only formed temporarily because the electrons inside an... -
Chemistry and Physics AS paper 12 MCQS
Hello~ :D I think I can help you out with these questions. Q.6. Which gas least resembles ideal gas? To answer this question I think you need to recall the kinetic theory of gases and one of them will be "No intermolecular forces between gas molecules." (a) Ammonia(try to draw the structure)... -
Chemistry and Physics AS paper 12 MCQS
Thank you for sharing :D. This working sure save a lot of troubles~ -
Chemistry and Physics AS paper 12 MCQS
Hmmm~~ Most of it is Redox. Some basic knowledge related to half equations are required as well but I think you should be okay with that right?:) I know you are good in chemistry too.:p -
Chemistry and Physics AS paper 12 MCQS
Whoa~~ This question is sooo hard :unsure:. But I think I came up with a solution but I am not sure whether it's 100% correct. First, I attempt to work out the no.of moles of the metallic salt and also sodium sulphite by using the volume and concentration given. Once you worked out the answer... -
Chemistry and Physics AS paper 12 MCQS
So Sorry XD~. Hope you don't mind...:( -
Chemistry and Physics AS paper 12 MCQS
I have decided to answer your question separately so that it won't be that lengthy :D http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s12_qp_12.pdf Q.16. The question is asking what are the reagent and conditions that is needed to... -
Chemistry and Physics AS paper 12 MCQS
http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s12_qp_12.pdf Q.6. It's all calculation. We are given the value of V=7000cm^3, Temperature=30 degree C and also the mass of O2 gas. First thing you have to do is to change the unit of... -
Chemistry and Physics AS paper 12 MCQS
http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s11_qp_11.pdf question 2 To answer this question you will need to apply your oxidation number knowledge. firstly, you find the change in oxidation state of N when it changes from NO3- to... -
Chemistry and Physics AS paper 12 MCQS
m/j/2012 p12 q.26: this question requires you to draw different isomers that contains pi bonds.(Double bonds) so I will show you my structural formula. CH2=CHCH2CH2CH3, CH2=CHCH(CH3)CH3, CH2=C(CH3)CH2CH3, don't forget the cis-trans isomers too ~ H(CH3)C=CH(C2H5), H(CH3)C=CH(C2H5) and lastly... -
Chemistry and Physics AS paper 12 MCQS
Don't mention it. It's my pleasure.:) -
AS Physics P1 MCQs Preparation Thread.
you can actually do this by just using R=V/I. At a. P.d increase more than I so you apply the formula R=V/I to guess the resistance. At b.) The P.D and I are increasing almost by the same amount. (Look at the graph, It looks almost like a straight line so we can assume it's proportional.) At c...