Chemistry

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Across
  1. 2. - negative or positively charged atoms
  2. 4. - the ph of water
  3. 6. - the weak attraction between water
  4. 9. - forms from a partial positive charge and a partial negative charge
Down
  1. 1. - an atom with one less proton
  2. 3. - what do plants use to store sugar?
  3. 5. - center of a cell
  4. 7. - something that joins together with covalent bonds
  5. 8. - subunits in a hemoglobin