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1. When the energy of a substance decreases, the motion of its molecules change. A substance has these 4 characteristics:
1. Molecules moving freely start to slow down
2. Collisions between molecules are less energetic
3. Intermolecular forces have more effect as molecules become closer
4. Molecules start vibrating in fixed positions
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Directions: Read each question carefully and answer
1. When the energy of a substance decreases, t...
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