Chemistry

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Across
  1. 3. a molecule containing more than one type of element
  2. 7. glows very bright when heated
  3. 10. when elements add an oxygen atom
  4. 11. a type of water that reacts carbon dioxide
Down
  1. 1. a reaction that can be changed back
  2. 2. when metals can transport hear and electricity well they are said to be good _____________.
  3. 4. rocks that contain metals
  4. 5. can be stretched
  5. 6. a reaction that cannot be changed back
  6. 8. molecules made of the same type of atoms
  7. 9. a type of very reactive metals found in group one