Which statement best describes the movement of atoms in a solid?
Sample Response: Because liquids flow freely, they take the shape of the container they are in, but have a definite volume. Like liquids, the shape of a gas changes with the container. This is because the atoms in a gas move rapidly and freely to fill any available space. Unlike liquids, the volume of a gas changes depending on the container it is in.
The atoms in a [___] have a definite volume, but move quickly enough to overcome the forces of attraction between them.
A: [___]
B: [___]
C: [___]
Use the drop-down menus to complete the statements.
[___] do not have a definite volume or shape.
[___] have a definite volume, but the shape may change.
Explain why the coin is able to float on top of the water in this glass.
The coin is able to float on the surface of the water because of surface tension. Surface tension is caused by the cohesive forces between water molecules, which create a thin, film-like layer at the surface that can support the weight of light objects even if they are denser than water.
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Question text not available
Explain why the coin is able to float on top of the water in this glass.
Water’s surface tension, caused by the attraction between water molecules, supports the coin at the surface when it is placed gently.
Sample Response: Viscosity refers to a liquid’s resistance to flow. Liquids with a higher viscosity flow more slowly. In liquids that are more viscous, there is a stronger attraction between atoms.
[___] have a definite shape and volume.
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