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doubts
25 posts
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Re: doubtsKK ..NOW I UNDERSTAND i think they shd have put changed instead of increased or decreased
Re: doubts
5th ques. -- 'oral pills' AND 'vaginal pills' 3rd ques. -- this is because the water may contain Mg and Ca salts with which the ordinary soaps dont function..it might also be bcoz of the added chemical scents in it [not sure]
Re: doubtsdoesnt de washing soda crystal loose 10 water molecules
because washing soda is Na2CO3.10H20 ???
Re: doubts
Nope. It looses 9 water molecules. Regards,
bcappu
Re: doubtshow?
is dis reaction dere in textbook and if it is heated it will have left Na2CO3.1H20?
Re: doubts
it looses nine crystals and leaves H20 as a product. Here is the equation Na2CO3.10H20 on heating gives Na2CO3 + H20 Regards,
bcappu
Re: doubtsno it is na2co3.10h20->na2co3.h20 +9 h2o
Re: doubts
ic, got a bit confused , thanks Regards,
bcappu
Re: doubtsit has to obey the law of conservation of mass
25 posts
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