States of Matter Vocabulary Crossword

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Across
  1. 1. the temperature at which a crystalline solid becomes a liquid
  2. 5. soaps and detergents that lower water's surface tension
  3. 8. a type of dipole-dipole force of attraction that is responsible for water's unique properties
  4. 9. the process by which a liquid becomes a gas
  5. 13. another name for a covalent compound
  6. 16. the tendency of a molecule to evaporate at normal temperatures
  7. 17. the force of attraction between 2 polar molecules
  8. 18. the reverse process of vaporization
  9. 20. the force of attraction between molecules
  10. 21. vaporization only at the surface of the liquid
Down
  1. 2. describes a molecule where there is NOT an unequal distribution of charge
  2. 3. the measure of the resistance of a liquid to flow
  3. 4. the temperature at which a liquid becomes a solid
  4. 6. the process by which a solid changes directly to a gas without first becoming a liquid
  5. 7. the pressure exerted by an evaporated substance over a liquid
  6. 10. describes a molecule that has a permanent unequal distribution of charge due to electronegativity differences among the bonded atoms in the compound
  7. 11. the process by which a gas or vapor becomes a solid
  8. 12. the temperature at which the vapor pressure equals atmospheric pressure; for water it is 100 degrees Celsius
  9. 14. another name for a polar molecule
  10. 15. the force of attraction that exists among all molecules; the only force of attraction between nonpolar molecules
  11. 19. a measure of the inward pull by particles in the interior of a liquid; water has the highest measure of this among liquids due to hydrogen bonding