Physical Science Unit 6b Vocab

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Across
  1. 2. the phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first
  2. 4. a solution that is resistant to large changes in pH
  3. 5. the process that changes a substance from a liquid to a gas at temperatures below the substance’s boiling point
  4. 13. a solution that contain as much solute as the solvent can normally hold at a given temperature
  5. 14. the energy a substance must absorb in order to change from a liquid to a gas
  6. 17. the phase change in which a gas or vapor changes directly into a solid without first changing into a liquid
  7. 18. a measure of the hydronium ion concentration of a solution
  8. 19. the separation of ions in an ionic compound as the compound dissolves
  9. 22. a compound that produces ions when it dissolves
  10. 24. a chemical reaction between and acid and a base
  11. 26. the pressure caused by the collisions of particles in a vapor with the walls of a container
  12. 28. a compound that produces hydroxide ions when dissolved in water; a proton acceptor
  13. 30. the amount of solute dissolved in a certain amount of solvent
  14. 32. a solution in which more solute can be dissolved at a given temperature
  15. 33. the result of a force distributed over an area
Down
  1. 1. a solution that contains more solute than the solvent can normally hold at a given temperature
  2. 3. the number of moles of a dissolved solute per liter of solution
  3. 6. a chemical reaction that absorbs energy from its surroundings
  4. 7. the maximum amount of solute that normally dissolves in a given amount of solvent at a certain temperature
  5. 8. a temperature of 0 kelvins
  6. 9. the energy a substance must absorb in order to change from a solid to a liquid
  7. 10. the phase change in which a substance changes form a liquid to a gas
  8. 11. the phase change in which a substance changes form a gas or vapor to a liquid
  9. 12. the process of dissolving by breaking into smaller pieces
  10. 15. a compound that produces hydronium ions when dissolved in water; a proton donor
  11. 16. a substance that changes color in the presence of an acid or base
  12. 20. an ionic compound formed when an acid reacts with a base
  13. 21. the direct proportion of the volume of a gas to its temperature (in Kelvins) if the pressure and the number of particles of the gas are constant
  14. 23. the inverse variation of the volume of a gas with its pressure if the temperature and the number of particles are constant
  15. 25. a description of a change in which a system releases energy to its surroundings
  16. 27. a reversible physical change that occurs when a substances changes form one state of matter to another
  17. 29. the process by which neutral molecule gain or lose electrons
  18. 31. a substance in which a solute dissolves