How can we cross multiply atoms and molecules

1.	How can we cross multiply atoms and molecules
Answer» Chemical formula of a compound is the symbolic representation of its atomic constituents. In other words, a chemical formula represents the composition of a molecule in terms of the symbols of the elements present in that molecule.To write the chemical formula of a compound, one should have prior knowledge of two things:The symbols of the constituent elementsThe combining capacity (valency) of each atom or ion constituting the compound

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