Qualification > Sciences

CHEM AND BIO HELP AND TIPS HERE

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nits94:
ya fine Thanks :) :) got confused

eightAs:

--- Quote from: nits94 on November 11, 2009, 03:29:18 pm ---hw??? I dint get it

--- End quote ---
CaO + H+(1) ---> Ca2+ + H2O(2)
H at (1) exists as an ion cos its from an acid. An acid ionizes completely or partially, meaning they split up into ions. eg.: HCl splitting into H+ and Cl-. At (2) its not H+ and OH- cos water is formed which does not ionize. I hope you get it.

adorabledaughter_07:
question- how doz hydrogn combine wid O2? ca is mor reactive>

@d!_†oX!©:
here we are not talking about a displacement reaction...its a neutralization reaction where water has to form by combing H and OH/O
do u get it now??

ruchir.sakhrani:
doubt

http://www.freeexampapers.com/FreeExamPapers.com_.php?__lo=SUdDU0UvQ2hlbWlzdHJ5L0NJRS8yMDA0IEp1bi8wNjIwX3MwNF9xcF8xLnBkZg==

Q.4.b.2 and Q.4.b.3

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