Question

How to identify a chemical change?

Answer 1

if there is any change in its state, if precipitate is formed , formation of new substances , change in its properties.......if any of them takes place then it's a chemical change.......


hope it's helpful.......

Answer 2

Dear Student,

◆ Chemical change -

• In chemical change, composition of substance changes.
• It is usually an irreversible change.
• For example, rusting of iron, baking of bread, fermentation, etc.

● Identification of Chemical change is -

Look out for following things to detect a chemical change -

1. Change in temperature
2. Change in colour
3. Change in odour
4. Change in appearance
5. Formation of precipitate
6. Formation of bubbles
7. Production of light

Thanks dear. Hope this helps you...