Physics, Chemistry and Biology: Post your doubts here!

[asma tareen]

ATP Notes
http://www.xtremepapers.com/community/threads/atp-notes.20798/

thnx dear

 

[Princess Raven]

LOL attract

THANK U

 

[nemonoorhan]

I

There is no grade of A** the max u can score is an A*.

know but what I meant was like a good grade an A*

 

[kanzsoom]

anyone has the CD-ROM which comes with igcse chemistry by richard harwood and ian lodge ?

 

[CaptainOmerica]

Physics Paper 6. I'd appreciate if you threw all possible help and tips you've got at me. I'd be in debt. Thank You!

 

[fatimanasir]

hey i have a doubt in question 2b , how to draw the graph?

 

[CaptainOmerica]

hey i have a doubt in question 2b , how to draw the graph?

I'm also having serious issues with the annoying Paper 6 Graphs. I went through numerous sources and what I learnt was that there always will be a line of best fit. It could be a single line or maybe to lines. I saw your problem and tried solving this. Here's what I came up with. According to the mark scheme, they demand a smooth curve but it shouldn't be "point to point". Somewhat indicative to the fact of two Lines of Best Fit. I can't believe I typed all of this. xD But Physics Paper 6 is one annoying paper. Good Luck Anyways. xD

 

[CaptainOmerica]

Oops and the image is horizontal, do rotate is first before seeing.

 

[CaveDweller65]

so do they have their ormula like alkane alkene n functional group? btw thank uu!!

Ester is a link formed when an Alcohol and Carboxylic Acid react together
It is identified by an OXYGEN=CARBON-OXYGEN Bond (O=C-O)

 

[SoSo MOody]

Ester is a link formed when an Alcohol and Carboxylic Acid react together
It is identified by an OXYGEN=CARBON-OXYGEN Bond (O=C-O)

thank u very much! it really helped..

 

[Ibtizam]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Chemistry (0620)/0620_w06_qp_3.pdf
qstn 8c ??

 

[Lockedin]

Question 4 of Physics 0625, May/June Paper 3 1993

 

[roudina]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Chemistry (0620)/0620_w10_qp_61.pdf
in the first question which one is ethanol and which one is aluminium oxide??

 

[SoSo MOody]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Chemistry (0620)/0620_w10_qp_61.pdf
in the first question which one is ethanol and which one is aluminium oxide??

A. is ethanol B. aluminium oxide..

 

[Ibtizam]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Chemistry (0620)/0620_w06_qp_3.pdf
qstn 8c ??

I need help !!!!!!!^^^

 

[CaveDweller65]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Chemistry (0620)/0620_w10_qp_61.pdf
in the first question which one is ethanol and which one is aluminium oxide??

In the diagram, the mineral wool contains ethanol, so that vapour diffuses off!
The other is Aluminum Oxide!

 

[roudina]

In the diagram, the mineral wool contains ethanol, so that vapour diffuses off!
The other is Aluminum Oxide!

thnx

 

[fatimanasir]

I'm also having serious issues with the annoying Paper 6 Graphs. I went through numerous sources and what I learnt was that there always will be a line of best fit. It could be a single line or maybe to lines. I saw your problem and tried solving this. Here's what I came up with. According to the mark scheme, they demand a smooth curve but it shouldn't be "point to point". Somewhat indicative to the fact of two Lines of Best Fit. I can't believe I typed all of this. xD But Physics Paper 6 is one annoying paper. Good Luck Anyways. xD

thanks alot ! ^^

 

[fatimanasir]

I'm also having serious issues with the annoying Paper 6 Graphs. I went through numerous sources and what I learnt was that there always will be a line of best fit. It could be a single line or maybe to lines. I saw your problem and tried solving this. Here's what I came up with. According to the mark scheme, they demand a smooth curve but it shouldn't be "point to point". Somewhat indicative to the fact of two Lines of Best Fit. I can't believe I typed all of this. xD But Physics Paper 6 is one annoying paper. Good Luck Anyways. xD

btw why did u start from 60? why not 10? and paper 62 oct/nov 2010 question 3b the graph, could u solve it and upload
and the ray diagram in paper 2010 may/june 61 please solve and upload . thanks

 

[abdullah abuobeid]

dose any one know where are the rivision notes for physisc for igcse or gcse plz do tell