Biology; Chemistry; Physics: Post your doubts here!

[a.abid]

Oh thank God !! I thot im bad with graph but im geting thm correct anyways thanks alot

welcome

 

[a.abid]

you really like graphs dont you?

lol no i dont Depends on the question

 

[MustafaMotani]

hey can anyone just say how to write ionic equation whenever I have to write ionic equation I have to make reaction equation and then cut out of spectators ions getting real equation...
wat i m asking for is that is there any short method to write down ionic equation or its something I have to develop by my own through practice or so... ?????

 

[Dukeofwin]

So the best possible way to work for Physic ATP is doing past papers right?
Or is there any other way someone's using?

 

[MustafaMotani]

So the best possible way to work for Physic ATP is doing past papers right?
Or is there any other way someone's using?

go through this u will get most of ur prac done..

 

[A star]

yup since we have no topics for atp. they can give every single topic under the syllabus. A question can be so muc of common sece that you cannot describe in words

 

[A star]

lol no i dont Depends on the question

well u seem to ans only graph questions

 

[a.abid]

well u seem to ans only graph questions

no i also answer others aap poocho if u have any,i ll answer

 

[A star]

if u r adding 5 moles of water, then u might as well add the 5000 moles of water that it is dissolved in!
no! SO4 ions are radicals, and they exist as SO4 2- ions in aqueous form, this much should be clear from various electrolysis!

radical nature of SO4 is beyond our syllabus so its better to just remember SO4 cannot be broken and is a single ion.

 

[MustafaMotani]

no i also answer others aap poocho if u have any,i ll answer

hey can you just tell how to write ionic equation, whenever I have to write ionic equation I have to make reaction equation and then cut out of spectators ions getting real equation...
wat i m asking for is that is there any short method to write down ionic equation or its something I have to develop by my own through practice or so... ?????

 

[a.abid]

hey can you just tell how to write ionic equation, whenever I have to write ionic equation I have to make reaction equation and then cut out of spectators ions getting real equation...
wat i m asking for is that is there any short method to write down ionic equation or its something I have to develop by my own through practice or so... ?????

Well I mostly do follow the whole formula in which we cut the spectator ions and all...but till now I havent come across any shorter way to write down the equation....

 

[Dukeofwin]

go through this u will get most of ur prac done..

thanks

 

[MustafaMotani]

Well I mostly do follow the whole formula in which we cut the spectator ions and all...but till now I havent come across any shorter way to write down the equation....

was just askin coz i dont want to do so much work for 1 mark..

 

[MustafaMotani]

thanks

Pleasure

 

[a.abid]

was just askin coz i dont want to do so much work for 1 mark..

lol

 

[MustafaMotani]

a.abid observation when rubidium and lithium reacts with water ??
seperate asnwrs appreciated ..

 

[a.abid]

observation when rubidium and lithium reacts with water ??
seperate asnwrs appreciated ..

Well for Lithium-Its more reactive,vigorous reaction,metal floats on surface of water,fire will also be observed.vigorous effervescene,metal dissolves.
Rubidium has a slower reaction, bubbles of gas will be observed

 

[Fallen316]

how to check for a zero error in a metre rule ?

 

[paradoX error]

Chemistry
June 2009 paper 2
A6 d)

 

[MustafaMotani]

how to check for a zero error in a metre rule ?

lol there is no zero error in meter rule, is there.. ??
I only know that one should use rule wid 1 cm mark instead of zero and subtract one from the reading you get.
this is becoz due to wear and tear it gets damaged from corners