Question

Explain Any two difference between Physical change and chemical change​

Answer 1

Answer:

The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.

Answer 2

Explanation:

Physical changes are generally reversible.

1. Changing of ice into water or vice versa.

2. Tearing of paper.

3. Shaping the clay in different shapes.

4. Cutting a wooden pile.

5. Switching on/off electric equipment.

Chemical changes are irreversible or some time reversible also

1. Digestion of food.

2. Burning of a matchstick, fuels.

3. Cooked or riped vegetables, fruits.

4. Getting old.

5. Formation of curd.