Question

a balloon extends when air is filled on it.when it is pinched with a sharp object,it blasts,the balloon under goes which type of change.give reasons .science​

Answer 1

Answer:

It's chemical change

Explanation:

When air is filled in a balloon then the number of molecules of air inside the balloon increases. As a result, more collisions of molecules take place with the walls. This gives rise to high air pressure on the walls which causes the balloon to expand and get inflated.

Answer 2

Explanation:

Gas particles exert pressure on the walls of the container in which the gas is filled. When a balloon is inflated, the air inside it expands, thereby exerting pressure on the walls of the balloon