Water- Chemistry

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Across
  1. 2. Neutrons and Protons are located here
  2. 4. A group of atoms bonded together
  3. 5. attraction between molecules of different substances
  4. 7. A substance made of only one kind of atom
Down
  1. 1. A substance made of joined atoms of two or more different elements
  2. 3. An attraction between molecules of the same substance
  3. 5. The basic unit of a chemical element
  4. 6. The chemical formula for water