Some chemical formulas, like H2O (a.k.a. water), are almost as familiar to us as the words themselves. But why do we write them the way we do? The answer goes back to ...
For example, the formula H 2 O shows that a water molecule contains two hydrogen atoms and one oxygen atom.
The chemical formula of a covalent molecular substance gives the number of atoms per molecule. The formula of a covalent network or ionic compound gives the simplest ratio of atoms/ions in the ...
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