What is matter Layne Vance

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