difference between physical change and chemical change
Answers
Answer:
Such changes which do not produces any new substances after the reaction is called as the physical change, whereas the changes which bring out the formation of new substance is named as the chemical change. So we can say that the main difference lies in the chemical composition, where one (chemical change) of the change is involved in altering the composition of the material and thus forms new substance and the other (physical change) brings out alteration in size, shape and colour only.
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Answer:
A chemical change is a permanent change.A physical change affects only physical properties i.e. shape,size,etc.some examples of physical change are freezing of water, melting of wax,boling of water,etc.A few examples of chemical change are digestion of food, burning of coal,rusting,etc.