Question

write physical and chemical changess clss 6​

Answer 1

Answer:

Physical changes are changes in the physical properties of substances. No new substances are formed in these changes. These changes may be reversible. In chemical changes new substances are produced.

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Answer 2

Answer:

Physical change:

(a) This change is temporary and reversible.

(b) There is no formation of new products.

(c) There is no energy change in these changes.

Example - Melting of ice.

Chemical Change :

(a) These changes are permanent and irreversible.

(b) There is formation of new products.

(c) Energy is either absorbed or evolved in these changes.

Example - Change of milk into curd.

Explanation:

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