Asked by fathima12 | 9th Nov, 2009, 11:04: PM
We do not write signs in the number.
The valenceies have to bereduced to the simplest whole number ratio while writing the chemical formula of a molecule.
The numbers signify the number of atoms of each atom reacting chemically to form a molecule. Its the formula of the molecule.
Answered by | 10th Nov, 2009, 11:53: AM
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