Chemistry

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Across
  1. 2. The study of chemical reactions
  2. 4. An element required for Energy Production
  3. 6. a compound or substance that has been purified or prepared
  4. 8. a thing that is composed of two or more separate elements; a mixture
  5. 10. identifyed by atomic number
Down
  1. 1. a Scale that test for acidic levels
  2. 3. bleach
  3. 5. having a pH below 7
  4. 7. A bond where electrons are shared
  5. 9. substance that has a PH higher than 7