0 the way of representing a substance using the symbols of its elements:
The name is in reference to its chemical formula.
Its forms an impure solid solution that deviates markedly in composition from the simple chemical formula.
If there is no coefficient before a chemical formula, the coefficient 1 is understood.
All national legislation should be carefully scrutinized to ensure that no loopholes exist which permit the manufacture of synthetic drugs merely by altering the chemical formula.
He did not even record the chemical formula he had used.
There is an intangible something which cannot be expressed by a chemical formula.
The language of chemistry is universal, and each chemical formula is unique.
The question of the relative stability of these prebiotic compounds with respect to the other possible species of the same chemical formula is therefore an important question to be addressed.
