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.
Which of these occurences are due to physical changes and which are due to chemical changes? During physical changes, a substance changes its physical appearance or state, but not its basic identity. In a chemical change, a substance is transformed into a chemically different substance. In case (a), we see that a chemical transformation has occurred: a combustion reaction has taken place.