NABTEB QUESTIONS

Give THREE differences between a physical and chemical change. – NABTEB QUESTION

Differences between a physical and chemical change

Physical change Chemical change
No new substances are formed Entirely new substances are formed
It is easily reversible Not easily reversible
No change in mass of substance involved . Involved changes in mass of substances
Accompanied by small heat change Accompanied by great heat change.
Component can be separated by physical reaction Component cannot be separated by chemical reaction

 

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