Science notes physical and chemical change
Answers
A physical change is the change of matter that occurs without changing chemical composition of the matter
A chemical change is the change of Chemical composition of the matter
Answer:
The change in which a substance undergoes a change in its physical properties is called a physical change . Whearas a change in which the chemical properties of the substance are changed and a new substance is formed . A chemical change is also called a chemical reaction.
Explanation:
The characteristics of a physical change are:
1. No new substance is formed.
2. Chemical products are identical to the reactants.
3. These changes are reversible.
The characteristics of chemical changes are
1. Most of the chemical changes are Irreversible.
2. properties of product are different from the properties of reactants.
3. chemical changes always results in energy change.