a. In terms of air molecules, explain what gives a balloon its shape when air is blown into it.
b. Why does it stop expanding when you stop blowing air into it?

A. This is because the pressure of the gas is the force that the gas exerts on the walls of its container. The force gives the balloon the shape when the air is blown into it.

B.When air is blown into a balloon, the balloon expands because the pressure of air molecules is greater on the inside of the balloon than the outside. When blowing of air is stopped, the gases in the balloon remain constant and so does its shape.

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a. In terms of air molecules, explain what gives a balloon its shape when air is blown into it. b. Why does it stop expanding when you stop blowing air into it?

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a. In terms of air molecules, explain what gives a balloon its shape when air is blown into it.
b. Why does it stop expanding when you stop blowing air into it?