Question

C. Classify the following changes as physical or chemical:
1. Crumpled a sheet of aluminum foil
2. Melting ice cube
3. Casting of silver in a mould
4. Breaking a bottle
5. Boiling water
6. Evaporating alcohol
7. Shredding paper
8. Sublimation of dry ice into carbon dioxide gas
9. Hammering wood together to build a playhouse
10. Sugar caramelises on heating​

Answer 1

Explanation:

1 physical

2 physical

3 physical

4 chemical

5 physical

6 physical

7

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