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it will move randomly and quickly to fill the empty space in the container..that's how the matter in a gas do to fill the container.. P/s: gas is matter that has mass and occupied space.
gas
Spread out.
it will spread
It will expand to fill the container and change shape to conform to the interior of the container.
It expands and spreads out, no matter is created.
Gas
All four states of matter could fill a container completely if there was enough of them.That said the properties of the 3 states of matter (that you need to know about for high/secondary school) are:Solid - Fixed shape and fixed volume.Liquid - No fixed shape but fixed volume.Gas - No fixed shape, no fixed volume and fill the space available.A large enough volume of liquid or solid could fill a container completely but only the smallest amount of a gas will fill the whole container.
A gas. Gas will expand to fill the available space.
A gas takes on the shape of the container it is in and expands to fill the whole container.
Only if this matter is a gas.
Gas state