Question

What is meant by a chemical formula? Write the formulae of one element and one
compound
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Answer 1

Explanation:

HEY MATE ..

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. In a chemical formula, the letters represent the atomic symbol of each atom. ...

Answer 2

Answer:

The chemical formula of a compound means the symbolic representation of the composition of a compound. 

Explanation:

For example, from the chemical formula CO2 of carbon dioxide, we come to know that one carbon atom and two oxygen atoms are chemically bonded together to form one molecule of the compound, carbon dioxide.