Question

distinguish between physical and chemical change

Answer 1

There are several differences between a physical and chemical change in matter or substances. Aphysical change in a substance doesn't change what thesubstance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.

Answer 2

Difference between Physical & Chemical change.

Pʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇ:

[1] Change is temporary.

[2] No new product is formed.

[3] It only effect physical properties.

[4] Ex: Burning of wax.

Cʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇ:

[1] Change is permanent.

[2] New product is formed.

[3] It effect both physical & chemical properties.

[4] Ex: Melting of wax.