Chemistry

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Across
  1. 3. what is a element?
  2. 5. What dose chromatography do?
  3. 7. what is a fixed shape?
  4. 9. what charge dose a Newton have?
Down
  1. 1. what is a mixture?
  2. 2. what does MgO stand for?
  3. 4. what rusts a lot?
  4. 6. what mass dose a proton have?
  5. 8. what is iron on the miredoric table?