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Chemistry: Post your doubts here!
for q 31 it wud be B?? as when the atoms become bigger the radii increase thus increasing bond length too because 2 radii make up the bond length as bond length is the measurement of length from the nuceus of one atom to the nucleus of the second atom. and as the atom becomes bigger the... -
Mathematics: Post your doubts here!
As OA --> 4i OC --> 2j OD --> 3k and it is a cuboid so: OG --> 2j+ 3k OA --> 4i AG = OG - OA = -4i + 2j + 3k and OB = 4i + 2j that said... now use the scalar product to find the angle between them (ai)(bi) + (aj)(bj) + (ak)(bk) = lal . lbl . Cos (angle between a and b) where a... -
Chemistry: Post your doubts here!
Ohhhhh.... thankuu soo much.. i c i got at a round about and starting turning round and round at the same point and lost my bearing somewhere in the questios :P lolx thanks for posting the question Raiyan3 :) -
A level Biology: Post your doubts here!
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_nos_ps_13.pdf for a levels practical skills on biology is this for paper 3 or paper 5?? i'm confused o.O :cautious: :confused: -
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Chemistry: Post your doubts here!
umm... i don't exactly remember the formula or stuff :P but i remember there was a way to do it with all the enthalpy changes like standard, combustion, hydration, etc. sab k different methods thay calculation k ... that's as far as i get this question and by the look of it i really don't wanna... -
hahaha...... Lahorriiiisss rule!!! :D :D ;)
hahaha...... Lahorriiiisss rule!!! :D :D ;)- daredevil
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haha... i thot so too wen sum1 tld me that o levels was way too eassy..... but it was true. now...
haha... i thot so too wen sum1 tld me that o levels was way too eassy..... but it was true. now i say that hav me do o levels three times but don't let me do a levels :P its reallllyy hard. and if u think o levels is karrrwa cake then i can't wait to hear wat u will hav to say abt a levels :P...- daredevil
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ooohhh... do u're doing o levels?? OO yeaah then i am a bit baji-ish ;P Good Luck.... btw o...
ooohhh... do u're doing o levels?? OO yeaah then i am a bit baji-ish ;P Good Luck.... btw o levels is a piece of cake when compared to A levels so enjoy, relax and then give it ur best go :) if u need any help i'll be ready to help as much as i can :)- daredevil
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Free Courses Online
hi everyone :) i came across a website that offers free courses in a number of departments and thought i would share it: courseera.org its an awsum website and the courses are comprised mainly of online lectures given by teachers from some of the top international universities e.g. Stanford... -
hahah bajii :P lol megiving Maths, Chem, Phy and Bio AS.... wbu?
hahah bajii :P lol megiving Maths, Chem, Phy and Bio AS.... wbu?- daredevil
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hahaha... thankss :) no i'm sure my brothers are not that intent on using a studies forum *XPF*...
hahaha... thankss :) no i'm sure my brothers are not that intent on using a studies forum *XPF* so no :) but thanks for the compliment :) am flattered :)- daredevil
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may/june 13
someone find me the address of the person who made papers and thn told us to give papers under the scorching may june sun and i'll killl him.... Gosh i hate papersss -___- may june SUX!! :/ and 1 and a half friggin monthhhh!! ARE YOU KIDDING ME!! :O :angry: -
Meaningful Prayer! {important}
MA :) May Allah bless u for doing such a noble task! :) please pray that all of us learn to resist Satan's temptation easily and start offering our five daily prayers :) please pray this way for all of us especially me :) May Allah grant u success and happiness in this life and the one that... -
Chemistry: Post your doubts here!
q 4 : calculate the total energy absorbed in bond breaking of CO and 2H2 : 1077 + 2(436) = 1949 calculate the total energy released in bond making of CH3OH: 3(410) + 360 + 460 = 2050 subtract the energy released from the energy absorbed in the reaction to calculate the enthaply change... -
Chemistry: Post your doubts here!
for q9: find out the total energy released when 1.60 g of fuel is burnt through the enthlpy method then calculate the thermal energy absorbed by water wit Q=mc(delta thita) sutbtract the amount of energy absorbed by the water from the total energy released and u'll get the thermal energy... -
Physics: Post your doubts here!
the answer wud be C (330 m/s) becasue the value is to be written correct to the number of decimal places same as the absolute error that means here it is 3 so we have to remove the decimals from our answer which makes it 328 after rounding off and to bring it in accordance with the absolute... -
9709 Maths P1 Notes Here! :)
seee. if its in there :) if not then it might seem a silly question but i have to ask : "have you visited the papers section of xtremepapers? because it has just recently been updated with the last session (O/N 2012) papers :)