Chapter 2 Vocab Review

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Across
  1. 3. the state of matter in which particles are far apart, move rapidly, and have little interaction with each other
  2. 4. a material made of only one kind of element or compound; not a mixture
  3. 8. the space enclosed or occupied by an object
  4. 9. the temperature at which a liquid starts to boil
  5. 11. any change in matter that does not alter the composition of the substance
  6. 12. the state of matter in which particles vibrate in fixed positions, giving a substance a fixed shape and volume
  7. 15. believed that matter consisted of a continuum that could be infinitely cut
  8. 16. the change of state from a solid to a liquid
  9. 18. the change of state from a liquid to a solid
  10. 19. the building block of all matter, consisting of protons, electrons, and (usually) neutrons
  11. 20. a distinct group of two or more atoms covalently bonded together
  12. 22. the change in state directly from a gas (vapor) to a solid without condensing first
  13. 23. a gas-like state of matter, formed at very high temperatures, that consists of high-energy ions and free electrons
  14. 24. a pure substance that consists of atoms with the same atomic number
  15. 25. changes that alter the chemical composition of a substance
Down
  1. 1. the change of state from a liquid to a vapor (gas)
  2. 2. the change of state from a vapor to a liquid
  3. 5. a property of a substance that describes how its chemical identity changes in the presence of another substance or under certain conditions
  4. 6. the mass of matter contained within a particular volume
  5. 7. the change in state directly from a solid to a gas (vapor) without melting first
  6. 10. the amount of matter in an object
  7. 11. anything about a substance that can be observed or measured without altering the substance’s chemical composition
  8. 13. anything that occupies space and has mass
  9. 14. the measure of gravity acting on the matter in an object
  10. 17. the state of matter in which particles are close together but able to move around
  11. 21. a pure substance consisting of atoms of two or more different elements that are chemically combined
  12. 26. a physical combination of two or more substances in a changeable ratio