Physics, Chemistry and Biology: Post your doubts here!

[diamondsky]

diamondsky hey man , can you send me a link of the colours of the common crystals and solutions? and can you name me some salts of chromium? and when drawing a smooth line graph, do we have to pass out graph through the in-appropriate(the point which stands out of the smooth curve) point too? thanx.

colours(if these r wat u mean)
fe2+ - green
fe3+ - brown
cu2+ - blue
chromium salts
chromium nitrate, sulfate, chloride, etc(odd qns. isnt it obvious)
u dont need to pass through d odd point, juz leave it
usually dey ask a 1m qns as to wich point is inaccurate
a bonus if u hav common sense

 

[zain1245780]

colours(if these r wat u mean)
fe2+ - green
fe3+ - brown
cu2+ - blue
chromium salts
chromium nitrate, sulfate, chloride, etc(odd qns. isnt it obvious)
u dont need to pass through d odd point, juz leave it
usually dey ask a 1m qns as to wich point is inaccurate
a bonus if u hav common sense

BTW TOMORROW IS MY EXAM PRAY FOR ME AND THANKS A LOT FOR ALL YOUR HELP, REALLY APPRECIATE IT!

 

[diamondsky]

BTW TOMORROW IS MY EXAM PRAY FOR ME AND THANKS A LOT FOR ALL YOUR HELP, REALLY APPRECIATE IT!

tom my exam also
atb

 

[Saahil Parikh]

colours(if these r wat u mean)
a bonus if u hav common sense

LMAOO

 

[CheryASH]

How to solve paper 62 may june 2010 Q2 (b) (I) hw to complete the tally chart?? The same kind of question paper 61 may june 2012 Q2 (c)(ii) for biology

 

[diamondsky]

How to solve paper 62 may june 2010 Q2 (b) (I) hw to complete the tally chart?? The same kind of question paper 61 may june 2012 Q2 (c)(ii) for biology

u juz hav 2 count d pointy edges
so if der r 9 den add one to d tally of 9
havent u dne it in maths???

 

[Saahil Parikh]

How to solve paper 62 may june 2010 Q2 (b) (I) hw to complete the tally chart?? The same kind of question paper 61 may june 2012 Q2 (c)(ii) for biology

these question want u to not apply your "biological" sense

more of common sense..

 

[CheryASH]

u juz hav 2 count d pointy edges
so if der r 9 den add one to d tally of 9
havent u dne it in maths???

I did maths but I never did these tally weird histogram
And hmmmm I already did count the leaves but I still don't really get what to do in the tally column

 

[dogcatgone]

hi has anyone done the paper 63 for biology? i need help in bio practical

 

[Purple@white]

is pollen tube formed just before fertilization takes place(i.e. wen the pollen tube lands on the stigma?) or is it already formed???
urgent.... plz reply fast...!!!

 

[semsemhosam]

is pollen tube formed just before fertilization takes place(i.e. wen the pollen tube lands on the stigma?) or is it already formed???
urgent.... plz reply fast...!!!

the stigma has a nutritive substance so when the pollen lands on the stigma it grows a pollen tube ... so yea its before fertilisation take place .... btw .. best of luck 4 tmw's exam

 

[Purple@white]

the stigma has a nutritive substance so when the pollen lands on the stigma it grows a pollen tube ... so yea its before fertilisation take place .... btw .. best of luck 4 tmw's exam

tysomuch

 

[semsemhosam]

tysomuch

np

 

[sweetiepie]

http://www.xtremepapers.com/community/threads/useful-stuff-compiled.10273/ all important stuff here hope this helps

 

[semsemhosam]

Eid Mubarak Everyone

 

[Saahil Parikh]

eid mubarak to u too

 

[semsemhosam]

 

[jameela]

i need Chemistry & Biology Paper 3 Extended May/June 2012. anyone please....

 

[@mtsharaf2]

chemistry problem :
Which of the following isnt used as a fuel
a carbon monoxide
b hydrogen
c) methane
d) nitrogen
Thanks in advance

 

[@mtsharaf2]

i need Chemistry & Biology Paper 3 Extended May/June 2012. anyone please....

it is still not uploaded in any of the sites
but here's the examiners report for june 2012 :
http://www.mediafire.com/?mm7sbuurfkuuu#4tdad5n5a3cr7