Answer: Water is made up of elements hydrogen and oxygen. Ozone is made up of element oxygen. The common element between them is oxygen.
Explanation:
Element is a pure substance which is composed of atoms of similar elements. It can not be decomposed into simpler constituents using chemical reactions.Example: Hydrogen (H)
Water and ozone are compounds which are formed by the combination of elements in fixed ratio by mass.Water and ozone have molecular formulas of [tex]H_2O[/tex] and [tex]O_3[/tex] respectively.Water is made up of elements hydrogen (H) and oxygen (O). Ozone is made up of element oxygen (O).
Thus the common element between them is oxygen (O).
