Asked by sweetynam | 17th Feb, 2009, 11:11: PM
1)we can easily know the states of reactants and products .
2)we can know about the exo or endo thermic reaction.
3 we can know about the no of noles of reacants and products
by writing chemical equation for the presentation of a chem reaction.
Answered by | 18th Feb, 2009, 03:10: PM
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