Pure and Impure Substances

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Across
  1. 2. (the process of using electricity to split water into hydrogen and oxygen.)
  2. 3. (molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.)
  3. 4. (as in chemical element so search for chemical element)
  4. 9. (a chemical reaction)
  5. 11. (is a combination of two words “mono”, and “atomic” means a single atom)
Down
  1. 1. (look for a chemistry definition)
  2. 5. (consisting of three atoms.)
  3. 6. (a compound substance - search that)
  4. 7. (consisting of two atoms.)
  5. 8. (it's a property, so look for meanings for physical property)
  6. 10. (chemistry definition needed)