Chapter 11

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Across
  1. 5. mixing occurs between individual units
  2. 6. any matter that has a fixed composition and definite properties
  3. 8. a substance that cannot be broken down into simple substances
  4. 9. a combination of more than one pure substance
  5. 10. anything that has mass and occupies space
Down
  1. 1. substances are not uniformly mixed
  2. 2. a substance made of atoms of more than one element bound together
  3. 3. the smallest unit of a substance that exhibits all of the properties characteristic of that substance
  4. 4. the chemical symbols and numbers indicating the atoms contained in the basic unit of a substance
  5. 7. the smallest particle that has the properties of an element