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Last updated 11:45 AM on 8/19/26
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7 Terms

1
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States of matter

  • Solid

  • Liquid

  • Gas

  • Aqueous


2
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Solid properties

  • Arrangement = closely packed in a regular arrangement

  • Movement = Vibrate in fixed positions

  • Energy = low


3
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Liquid properties

  • Arrangement = Close together with irregular arrangement

  • Movement = Slide past each other

  • Energy = Medium


4
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Gas

  • Arrangement = Far apart

  • Movement = Move randomly and quickly

  • Energy = Highest


5
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Changes of state (Cooling and Heating)

Cooling

  • Gas → Liquid through Condensation

  • Liquid → Gas through Boiling

Heating

  • Solid → Liquid through melting

  • Liquid → Gas through boiling


6
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Energy Transfer (Heating and Cooling)

  • Heating = particles gaining energy

  • Cooling = particles losing energy


7
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Limitations of the particle model

Doesn’t show:

  • Actual particle sizes

  • Forces between particles

  • Random movement

  • Why substances have different boing points