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defined physical and Chemical change with 5 examples

Posted by Aryan Patel 4 years, 8 months ago

CBSE > Class 10 > Science

2 answers

Riya Patidar 4 years, 8 months ago

CHEMICAL CHANGE-A chemical change is a permanent change. EXAMPLE-burning of paper or log of wood,digestion of food,boiling an egg, milk going sour,rotting of banana. PHYSICAL CHANGE-A Physical change affects only physical properties i.e. shape, size, etc. EXAMPLE-freezing of water, melting of wax, boiling of water,mixing sand and water, dissolving sugar and water.

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Sia ? 4 years, 8 months ago

	Physical Changes		Chemical Change
1.	It is not permanent and can easily be reversed.	1.	It is permanent and cannot be easily reversed.
2.	It does not lead to formation of new substances.	2.	It leads to the formation of new substances.
3.	No change in mass is noticed.	3.	There is a change in mass of reactants and products.
4.	The energy changes observed are small.	4.	Large energy changes are observed.

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Posted by Pandey Ji 5 months, 3 weeks ago

CBSE > Class 10 > Science