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