What is the difference between a chemical symbol, chemical formula, and a chemical equation? Give an example of each.

A chemical symbol designates an element that belongs to
the periodic table.

A chemical formula combines two or more
symbols and it represents a chemical compound. We notice that the chemical symbols are
followed oftenly by a subscript that represents the mole proprtions of next
element.

Chemical equation involve chemical formulas of
reactants and products. Reactants are chemical compounds that enter into a chemical
reaction and products are the result of the chemical reaction between reactants. The
amount of elements found in reactants must be equal to the amount of elements found in
products.