Your existing education or experience, combined with Franklin Universityâs Energy Management major, can propel you to the management level and more career opportunities. Moreover, convenient, online courses mean you can earn your degree where and when it is convenient for you.
The particles also have different amounts of energy when the substance is in different states. For example, particles in liquid water have more energy than particles in ice. To change a substance from one state to another, you must add or remove energy.
Physical changes affect the state of an item, and a chemical change happens at a molecular level. Chemical changes involve atomic bonds being created or broken during chemical reactions. When iron rusts because it is exposed to the oxygen, that is a chemical change. In this instance, the molecules change their structure and become iron oxide.