Science, asked by csharmarajpur, 3 months ago

20 example of physical and chemical change plzzz it is too important​

Answers

Answered by sundarammuthuselvi
8

This is your answer.

i am sorry i have only 6 examples each.

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Answered by sampurnalahiri2009
2

Answer:

20 examples of physical changes =  

1. Crushing a can

2. Melting an ice cube

3. Boiling water

4. Mixing sand and water

5. Breaking a glass

6. Dissolving sugar and water

7. Shredding paper

8. Chopping wood

9. Mixing red and green marbles

10. Sublimation of dry ice

11. Crumpling a paper bag

12. Change of state from solid to liquid

13. Sieving grains and other impurities

14. Cutting of paper

15. melting of snow

16. Drying of clothes

17. sharpening of pencil

18. Breaking of marble

19. tearing of cardboard

20. hitting of football

20 examples of chemical changes =

1. Evolving bubbles or releasing gas

2. Absorbing or releasing heat

3. Changing color

4. Releasing an odor

5. Inability to reverse the change

6. Precipitation of a solid from a liquid solution

7. Formation of a new chemical species. This is the best and surest indicator. A change in the chemical properties of the sample may indicate a chemical change (e.g., flammability, oxidation state).

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