Physics, Chemistry and Biology: Post your doubts here!

[Ni19Mo]

For which paper do we learn the tests for ions?

And in what ways does change in concentration affect an equilibrium? :$

 

[sweetiepie]

https://www.xtremepapers.com/community/threads/useful-stuff-compiled.10273/ Notes Added Check Out Hope This Helps

 

[sweetiepie]

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

 

[SIstudy]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Biology (0610)/0610_s07_qp_6.pdf
Q1 a(i)
I'm nt able to measure lenghts frm fig 1.2

 

[Tim Diamond]

a transistor works only when its 3 terminals are connected in a circuit with the emitter arrow in the direction of conventional current.......it can be used as a switch by controlling the voltage across its base either by suplying a new battery or using a potential divider arrangement....and Tim i think u have a misconception on 9 its p6 and u don't need to know about transistors in p6........anyways good luck and i hope i wuz helpful...

Thank you.

Are u writing your exams this month too?

 

[zain1245780]

some one plz tell me what should i take with me for Bio paper 6 apart from pen, pencil and geometry box?

 

[zain1245780]

anyone plz help me with Q 1c. plz explain how to find out those values. http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Biology (0610)/0610_s11_qp_61.pdf

 

[sj0007]

Can someone plzzzzzzzzzzzzz help me with organic chemistry i am in 9 th grade so anyone can give me notes

View these threads.....Chemistry For you <3 | XtremePapers Community
O-level Notes Center | XtremePapers Community
NOTES POSTED ON XPC BY ME | XtremePapers Community

 

[sj0007]

Thank you.

Are u writing your exams this month too?

UNFORTUNATELY YES...

 

[weirdoatlarge77]

Hello,
Would like to know the ideal answer for the table headings for question 1a
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Biology (0610)/0610_s11_qp_51.pdf

 

[ZaqZainab]

For which paper do we learn the tests for ions?

And in what ways does change in concentration affect an equilibrium? :$

paper 6 chem

 

[Mohammed salik]

Hello Guys, Physics Question, Paper w12, v32 given Below. Plz help me with Q11 c and d(ii)!!
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w12_qp_32.pdf
Thanx Alot!! Plzz

 

[sj0007]

Hello Guys, Physics Question, Paper w12, v32 given Below. Plz help me with Q11 c and d(ii)!!
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w12_qp_32.pdf
Thanx Alot!! Plzz

q11 c draw the same waveform but wid half the amplitude cuz the voltage is divided in half across both the two resistors
q11 d(ii) both will be off on the top but will be on in the bottom

 

[Rockzstar]

Please give examples of safety measures in testing for food tests ??

 

[ZaqZainab]

Please give examples of safety measures in testing for food tests ??

using eye protection
Using spatula to pick the food! Gloves may be incase Iodine drops on skin Iodine is toxic
that's what i know

 

[Mohammed salik]

q11 c draw the same waveform but wid half the amplitude cuz the voltage is divided in half across both the two resistors
q11 d(ii) both will be off on the top but will be on in the bottom

Thanx alot, But why Both off at top and on in Bottom? Thanx Again

 

[sj0007]

plz help me wid dis.....wen conc. of alkali increases wat happens to the volume of acid needed to neutralise it?
reply asap!!

 

[sj0007]

Thanx alot, But why Both off at top and on in Bottom? Thanx Again

because base current doesn't flow at top
in the bottom base current is flowing and circuit is complete

 

[Mohammed salik]

plz help me wid dis.....wen conc. of alkali increases wat happens to the volume of acid needed to neutralise it?
reply asap!!

Acid volume Increases. Because as base is concentrated there are more particles so there is more volume needed to neutralize it!

 

[sj0007]

Acid volume Increases. Because as base is concentrated there are more particles so there is more volume needed to neutralize it!

thanx a bunch.....