Question

Qno 4 What is meant by the term chemical formula?​

Answer 1

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A chemical formula is a notation used by scientists to show the number and type of atoms present in a molecule, using the atomic symbols and numerical subscripts.A chemical formula describes a substance, down to the exact atoms which make it up.

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Answer 2

Answer:

A chemical formula identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element. In empirical formulae, these proportions begin with a key element and then assign numbers of atoms of the other elements in the compound, by ratios to the key element.