Question

state any four differences between physical change and chemical change​

Answer 1

Answer:

PHYSICAL CHANGE:-

1)  When a substance undergoes a physical change, its composition remains the same despite its molecules being rearranged.

2) Physical change is a temporary change.

3) A Physical change affects only physical properties i.e. shape, size, etc.

4) A physical change involves very little to no absorption of energy.

CHEMICAL CHANGE:-

1) When a substance undergoes a chemical change, its molecular composition is changed entirely. Thus, chemical changes involve the formation of new substances.

2) A chemical change is a permanent change.

3) Chemical change both physical and chemical properties of the substance including its composition

4) During a chemical reaction, absorption and evolution of energy take place.

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