Question

the model below represents a molecule of oxygen. billions of pounds of oxygen are produced in factories each year. over half of this oxygen is used to help produce steel. complete the statement. oxygen is an elementary substance a compound

Explanation:

An elementary substance consists of only one type of atom. A compound consists of two or more different types of atoms chemically bonded. The model shows oxygen molecules (\(O_2\)), which are made up of only oxygen atoms (as indicated by the symbol \(O\) in the key). So oxygen is an elementary substance.

Answer:

an elementary substance