Question

difference between chemical change and physical change ?
${(4 \div 4) \times 5 \: solve}$
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Answer 1

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In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed. The distinction between physical and chemical change is not clear cut.

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Answer 2

Answer:

Physical change

1. No new substance is formed.

2. A physical change is a temporary change.

3. It is easily reversible.

4. Little amount of heat energy is absorbed or given out in physical change.

5. The mass of substance does not alter in a physical change.

Chemical change

1. A new substance is formed in Chemical change.

2. It is a permanent change.

3. It is usually irreversible.

4. A lot of heat energy is absorbed or given out in a chemical change.

5. The mass of a substance does alter in a chemical change.

Hope this help you.