Question

discuss discuss an example of physical and chemical change happening together​

Answer 1

• In general a physical change is reversible using physical means. For example, salt dissolved in water can be recovered by allowing the water to evaporate. Melting: Melting is when solid converts into a liquid after heating. Example of melting is turning of ice into water.
• Consider the example, when salt is mixed with water. The salt dissolves in water forming a solution. The salt can be obtained back by the evaporation of water and water by condensation of the water vapour. Such changes which can be easily reversed are called reversible changes.

Answer 2

Answer:

Lighting of a candle

Explanation:

Lighting of a candle is chemical change

So it is irreversible

When it is burning the wax drops fall down

So it is reversible ... You can use it again