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What is a characteristic of solids according to the particle model of matter?
What is a characteristic of solids according to the particle model of matter?
- Particles move freely in all directions.
- Tightly packed particles. (correct)
- Far apart particles.
- No fixed shape or volume.
What defines a chemical change?
What defines a chemical change?
- Formation of new substances.
- Alterations in physical properties.
- Reversible in nature.
- Transformation of substances. (correct)
What is a characteristic of solutions?
What is a characteristic of solutions?
- Particles vibrate in their positions.
- No change in chemical composition.
- Combinations of substances not chemically bonded.
- Homogeneous mixture of solute and solvent. (correct)
What is a characteristic of gases according to the particle model of matter?
What is a characteristic of gases according to the particle model of matter?
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What is a characteristic of physical changes?
What is a characteristic of physical changes?
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