If you have any question on chem p6 im ready you guys. Don't Worry!!

[thats_me]

what does this observation indicate ???????
"condensation at top of tube" PLEASE HELP !!!
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Chemistry (0620)/0620_w05_qp_6.pdf
its in question 5

this means it contains water or its hydrated ..

 

[salmanhassan]

why does delivery tube crack if we dont remove it ???

 

[thats_me]

logically .. increase it temp .. particles move faster breaking the bonds between them at a certain temp rise & therefore a liquid can become a gas & gas has less mass than liquid not sure though

aite thx

 

[humanlaser]

this means it contains water or its hydrated ..

TY
can someone name this apparatus ?

 

[Manobilly]

TY
can someone name this apparatus ?

Syringe.

 

[Yousif Mukkhtar]

what does this observation indicate ???????
"condensation at top of tube" PLEASE HELP !!!
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Chemistry (0620)/0620_w05_qp_6.pdf
its in question 5

You can say it is a hydrated salt. Because condensation occured.

Or you can say it is an acidic gas, because of the PH went red.

 

[thats_me]

TY
can someone name this apparatus ?

np its a gas syringe

 

[suzy_96]

Doese somone now somthing about coloured compounds?? can't find info. pls help

 

[Anubias]

I have a question. In a reaction, if we double the solvent, will the speed of reaction be doubled or remains the same?
Thanks

 

[JimmyCarter]

I have a question. In a reaction, if we double the solvent, will the speed of reaction be doubled or remains the same?
Thanks

if you increase the volume then the reaction slows down, because there is more solvent for the solute to react with.

 

[Anubias]

if you increase the volume then the reaction slows down, because there is more solvent for the solute to react with.

Wouldn't the speed of reaction increase, as there are more solvent molecules, hence a greater chance of successful collision.

 

[thats_me]

Wouldn't the speed of reaction increase, as there are more solvent molecules, hence a greater chance of successful collision.

no the speed decreases,, the collision increases wen the concentration is increased which means more no of particles packed in the same volume tis is wen the speed would increase..

 

[Anubias]

Aight. So the speed will slow down by twice. Thanks mate.

 

[Lost_Life]

you guys didnt do the exam yet?

 

[Anubias]

I did paper 5 variant 2 today

 

[Micro961]

When an acid is in excess, if the volume is doubled, the rate of reaction increases?