CHEM AND BIO HELP AND TIPS HERE

[Nobody]

I think it's 2-3 methylpentane
Not sure..

[Vin]

I think it's 2-3 methylpentane
Not sure..

I think its  2 -3 dimethylpentane

[holtadit]

2,3- dimethylpentane

[nid404]

2,3-dimethylpentane it is

[holtadit]

2,3-dimethylpentane it is

Score one for the home team !!!!!!! 

[Baladya]

http://www.xtremepapers.net/CIE/Cambridge%20IGCSE/0620%20-%20Chemistry/0620_s09_qp_3.pdf

Can anyone explain me 6)b) 
Thanks

[mohit1234]

6)b) i) equlibrium occurs wen the amount of the reactants are equal to the amount of the product. Also it is wen the rate of the forward and backward reactions are the same

forward reaction is wen nitrogen and hydrogen react to form ammonia
backward reaction is wen the ammonia breaks up into nitrogen and hydrogen

ii) according to the graph an increase in temperature causes a decrease in the % of ammonia

[Baladya]

6)b) i) equlibrium occurs wen the amount of the reactants are equal to the amount of the product. Also it is wen the rate of the forward and backward reactions are the same

forward reaction is wen nitrogen and hydrogen react to form ammonia
backward reaction is wen the ammonia breaks up into nitrogen and hydrogen

ii) according to the graph an increase in temperature causes a decrease in the % of ammonia

omg man srryyy i meant 5)b... really sorry

[CatAly$t]

can somebooooody tell me about liver cell???

[mohit1234]

can somebooooody tell me about liver cell???

liver cell is the normal animal cell having cytoplasm, a nucleus and a cell membrane.

[CatAly$t]

liver cell is the normal animal cell having cytoplasm, a nucleus and a cell membrane.

only??

nothing different???

whats the function?

[mohit1234]

only??

nothing different???

whats the function?

nope i dont think there is anything different abt it unless u have to compare it to a plant cell or bacterial cell etc
i dont think they will ask the function of a liver cell...they can ask the function of the liver, not the cell.
heres a site fr the functions of the liver

http://www.essortment.com/all/liverscellsstr_ricl.htm

[mohit1234]

omg man srryyy i meant 5)b... really sorry

no problem..
anyways

the vol. of phosphate soln used in cm3 is half the height of the ppt in mm
also at 8cm3 all the soln is used up. tht is because adding more does not increase the height of the ppt meaning there was no further reaction on adding more.
also the formula is T3(PO4)2-----because

u take it as 12cm3 of T nitrate react with 8cm3 of sodium phosphate (thts wen all the reactants r used up)
so.....12:8...simplify it
12:8
6:4
3:2
and therefore u get T3(PO4)2

[Baladya]

no problem..
anyways

the vol. of phosphate soln used in cm3 is half the height of the ppt in mm
also at 8cm3 all the soln is used up. tht is because adding more does not increase the height of the ppt meaning there was no further reaction on adding more.
also the formula is T3(PO4)2-----because

u take it as 12cm3 of T nitrate react with 8cm3 of sodium phosphate (thts wen all the reactants r used up)
so.....12:8...simplify it
12:8
6:4
3:2
and therefore u get T3(PO4)2

Thank you for the explanation

[CatAly$t]

nope i dont think there is anything different abt it unless u have to compare it to a plant cell or bacterial cell etc
i dont think they will ask the function of a liver cell...they can ask the function of the liver, not the cell.
heres a site fr the functions of the liver

http://www.essortment.com/all/liverscellsstr_ricl.htm

thx dude