Use the particle model of matter to explain why: a. solids cannot flow;
b. liquids have no definite shape;
C. gases can be compressed easily;
d. gases are less dense than solids and liquids.
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Because the particles cannot move around, a solid has a fixed shape. Liquids do not have a fixed shape but they do have a fixed volume. The particles are very close together. ... A gas can be compressed into a very small space – this pushes the particles closer together.
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