Question

Can you give me two examples of substances in which both physical and chemical change take place ???

Answer 1

Answer:

1. Melting and burning of candle wax

2.Burning of wood

Explanation:

1. Melting and burning of candle wax is an example of both physical and chemical changes.

2. Burning of wood is another example of both physical and chemical change. When wood is burnt the moisture present in it turns to vapour ,it is a physical change while it burns and generate CO2 is a chemical change.

Answer 2

Answer:

examples of chemical change are digestion of food, burning of coal, rusting, etc.

Explanation:

Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.