Science

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Across
  1. 2. pure substances made of one type of atom
  2. 9. a combination of different substances not chemically bonded together
  3. 11. an addition of an oxygen atom to a compound
  4. 12. separates insoluble solids from liquid
  5. 13. when a fuel is burned with oxygen, releasing hot and light
Down
  1. 1. the name given to reactions between acids and bases
  2. 3. two or more atoms chemically bonded together
  3. 4. acid with the chemical symbol of HCL
  4. 5. separates a dissolved solid from a liquid
  5. 6. separates dissolved solids but also recovers the liquid
  6. 7. combustion follows its rule
  7. 8. made up or consisting of several parts or elements.
  8. 10. separates large insoluble solids from a liquid