you
7. Explain why burning of wood and cutting it into small pieces
considered as two different types of changes.
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Answer:
The burning of wood leads to the formation of new substances like ash(carbon), carbon dioxide gas, water vapour, heat and light. This change is irreversible and hence a chemical change.While cutting wood into smaller pieces is a physical change as there is no change in the original composition of wood. Also, no new substances are formed.
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Explanation:
If we burn wood it will become as coal
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