Question

Defination and example of chemical change and physical change

Answer 1

In chemical change one substance reacts with other substance to undergo a change and a new substance is obtained.
EX: burning of paper
The changes which occurs without any chance in composition or chemical nature of the substance is called physical change.
Ex: melting of ice

Answer 2

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