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Question
What do you observe when :
a piece of paper is burnt
Solution
On burning piece of paper produces carbon dioxide and ash is left behind. Is a chemical change.
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RELATED QUESTIONS
What do you observe when :
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Observe the picture containing a kettle and note that it has salt water in it and answer the following questions:
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| S. No. | Change | Can be reversed (Yes/No) |
| 1. | The sawing of a piece of wood | |
| 2. | The melting of ice candy | |
| 3. | Dissolving sugar in water | |
| 4. | The cooking of food | |
| 5. | The ripening of a mango | |
| 6. | Souring of milk |
The difference between initial state and the final state is called change.
