States of Matter

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It is a liquid because the volume is fixed, and the shape changes.

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Figure 1; the particles are tightly packed.

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The student is correct because a solid has a fixed shape and volume.

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Observation 3

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The mass of the water in Beaker 2 is greater and the temperature is warmer than the water in Beaker 3.

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Solid

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Substance 1 should be classified as a gas, and Substance 3 should be classified as a liquid because the volume of a liquid is fixed.

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The substance is a gas because its shape and volume are indefinite.

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The water in Glass W is warmer than the water in Glass Z.

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increased evaporation and decreased precipitation