AcDec Science 23

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Across
  1. 2. Whose theory was supported by Proust’s law of definite proportions?
  2. 6. What did Lavoisier come to call metal calxes (two words, put a hyphen in between)?
  3. 7. The part of the universe under study.
  4. 8. What are atmospheric particles called that enter the lungs where they may stick or exchange harmful components that damage lung tissue (two words, put a hyphen in between)?
  5. 10. When Lavoisier established the law of conservation of mass, he also debunked what theory?
  6. 13. The major component of a solution.
  7. 16. A sample of gas is in a cylinder with a movable piston. If the pressure is increased while the temperature is unchanged, the volume will __.
  8. 18. Which French chemist claimed that he discovered oxygen independent of Priestley and Scheele’s experiments?
  9. 19. Impurities make the metal __.
Down
  1. 1. Reactions of metals and carbon compounds heated in air.
  2. 3. If the energy of a molecule = 3/2kT, what is k equal to (two words, put a hyphen in between)?
  3. 4. The deposition of a thin coat of a metal onto the surface of an object by passing an electrical current through a salt solution containing the metal ion to be deposited.
  4. 5. Who (last name only) formulated a reiteration of the law of conservation of energy, that states that the heat evolved or absorbed in a chemical process is the same whether the process takes place in one or in several steps?
  5. 9. Unit for ion charges.
  6. 11. Which Scottish chemist is credited with the discovery of carbon dioxide, which he called “fixed air.”
  7. 12. Rate of reaction at any one point in time.
  8. 14. What did Scheele refer to Oxygen as upon first discovery (two words, put a hyphen in between)?
  9. 15. A substance that has a tendency, in solution, to accept a proton is __.
  10. 17. What metal does the aerospace industry use on certain components used in space shuttle designs?