chemistry

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Across
  1. 2. composed of the same kind of matter.
  2. 4. the smallest particles.
  3. 5. characterized by definiteshape and volume.
  4. 8. agroup of symbols.
  5. 9. groups of two or more atoms.
  6. 10. substance that can be descompose .
Down
  1. 1. substances that are incompletely mixed.
  2. 3. difined as anything occupies space and mass.
  3. 6. symbols are abreviations of the english names.
  4. 7. substances that cannot be broken down.