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Physical Changes

A potato rema...

Question

A potato remains a potato even after it is cooked. Therefore, cooking is a physical change. Do you agree? Give reasons.

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Solution

When a potato is cooked, heating the potato cause changes in the molecules of the potato. Therefore, upon cooking, the potato does not remain the same at a molecular level. Thus, cooking is a chemical change, not a physical change.

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Q. Question 15
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