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2016-03-04T10:18:12+05:30

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A chemical formula that give information about the no. of atoms of each elements of every molecules present in that compound .
H2O : (a) water is a compound of hydrogen and oxygen .
(b) there are 1 atoms of oxygen and 2 atoms of hydrogen.
(c) molecular mass of H2O is 18u.
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2016-03-04T13:47:54+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
It is the formula in which exact no. of atoms of different elements are present in a compound
e.g. C6H12O6 is the molecular formula of glucose
the three information given by the molecular formula of H2O are as follows :
(i) here 2atoms of hydrogen and 1 atom of oxygen is present.
(ii) by this formula we can find the molecular mass of a molecule that is 18u.
(iii) we can easily find the valeancy of the element like in H2O. the valency of hydrogen is 1 and valeancy of oxygen is 2
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