Question

Question 3
What is meant by the term chemical formula?

Answer 1

The chemical formula of a compound means the symbolic representation of the composition of a compound. From the chemical formula of a compound, we can know the number and kinds of atoms of different elements that constitute the compound. For example, from the chemical formula of carbon dioxide is $C{O}_2$, this means that one carbon atom and two oxygen atoms are chemically bonded together to form one molecule of the compound, carbon dioxide.