________ changes are temporary and reversible.

Undesirable

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Desirable

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Physical

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Chemical

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Solution

The correct option is C Physical
When a physical change takes place, the identity of the substance does not change. The substance can be converted back to its initial state after the physical change. Therefore, physical change is temporary and reversible.

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Question 7

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________ changes are temporary and reversible.

The correct option is C PhysicalWhen a physical change takes place, the identity of the substance does not change. The substance can be converted back to its initial state after the physical change. Therefore, physical change is temporary and reversible.

The correct option is C Physical
When a physical change takes place, the identity of the substance does not change. The substance can be converted back to its initial state after the physical change. Therefore, physical change is temporary and reversible.