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A chemical formula shows the composition of a substance. It shows the elements present and their relative numbers. There are several types of formula which give specific types of information, but that's the basics.

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7y ago
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11y ago

The chemical formula indicates how many atoms, and of what type, are in the chemical. For example, the chemical formula of water, H2O, shows that there are two hydrogen, and one oxygen, atoms in the molecule.

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11y ago

The chemical formula is the illustration of the chemical composition of a compound.

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Q: What does a chemical formula communicate?
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