What is meant by the term chemical formula?
The term chemical formula of a compound is said to be the symbolic representation of its composition or it is a notation that shows the type and number of atoms in a molecule of a compound with the help of atomic symbols and numbers. They provide information on the elements that constitute the molecules of a compound and the ratio in which the atoms of those elements combine to form the molecules. Example: A molecule of water, which is a compound, contains two molecules of hydrogen and one molecule of oxygen. Its chemical formula is H O2 .
