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étudiante

Welcome

yaar.... m a bit too tensed dis tym... n like last tym dat chest pain thingy started again

thanks... i need only 63 in M1 n M2 to make it an A

Shoggaine

Awww.....dnt hav oily stuff ( which u dnt i knw) Do u knw da reason?? Drink water.
Lisn, what happens whn grp 2 reacts wid H2SO4??

étudiante

i dunno y it happens =/
H2 gas is liberated, effervesence

Shoggaine

Yess....der is a question in jan 06.
Salt B contains gp2 cations.
Dil H2SO4 was added to B and white ppt is produced.
Two possible cations cud be?

Shoggaine

I donno how 2 differentiate :S

étudiante

Ba2+ or Ca2+ i guess..

Shoggaine

Ohh i jst saw da scheme....dey said any 2

étudiante

wat do u mean ANY??

Shoggaine

Ca,Sr,Ba,Ra

étudiante

wth??? it can only be Ca and Ba cuz only dey will produce insoluble precipitates :S

Shoggaine

Evn i wrote dat nd whn i was checkin da scheme it said dis. U r sure nah?

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