1. Distinguish between a chemical change and a physical change. Illustrate each using several examples.
A physical change does not change the substance of the matter the identity does not change. A chemical change produces a new substance and absorbs or liberated heat. Chemical changes produce an indication of chemical change substances combine chemically producing new substances that cannot separated by physical means. Examples of physical changes: Dissolving salt in water is a physical change. When water is boiled salt remains behind a physical change can be reversed. Breaking wood into pieces is a physical changes. However, example of chemical changes burning wood creates a chemical changes. Water turning into steam and water turning
A physical change does not change the substance of the matter the identity does not change. A chemical change produces a new substance and absorbs or liberated heat. Chemical changes produce an indication of chemical change substances combine chemically producing new substances that cannot separated by physical means. Examples of physical changes: Dissolving salt in water is a physical change. When water is boiled salt remains behind a physical change can be reversed. Breaking wood into pieces is a physical changes. However, example of chemical changes burning wood creates a chemical changes. Water turning into steam and water turning