Question

write the definition of physical and chemical changes and its example​

Answer 1

Answer:

A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting.

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➳Examples of physical changes are boiling, melting, freezing, and shredding.

Answer 2

Answer:

A change in which no new substances are formed and which can generally be reversed by reversing the conditions is called a physical change.

A change in which new substances are formed and which cannot be reversed by reversing the conditions is called a chemical change.

Explanation:

Physical change: The melting of wax.

Chemical change: The burning of wax.

(both can be seen together in a lit candle)