Three grams of the same substance in different phases are stored in three different containers. Each container is barely large enough to hold the substance. Which statement can be known about the behavior of the atoms in each container?

In a solid, atoms stay near fixed positions and vibrate around them. Liquid atoms can move past one another, while gas atoms move freely and usually rapidly through their container. Therefore, the statement that the solid’s atoms vibrate in position is the one that can be known.

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