Chemistry

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Across
  1. 1. a substance that dissolves in water to produce hydrogen ions
  2. 4. a substance that removes catalyst effect
  3. 8. basic building blocks of matter
  4. 10. pure substances made of only on kind of atom
  5. 12. anything that has mass and takes up space
  6. 13. the chemicals on the left side of a chemical equation
Down
  1. 2. substance that lowers the energy required to start a reaction
  2. 3. movement of molecules from higher concentration
  3. 5. stored chemical energy that holds atoms together
  4. 6. a substance that dissolves in water to produce hydroxide ions
  5. 7. a molecule that has a partial negative and partial positive charge
  6. 9. the chemicals on the right side of a chemical equation
  7. 11. proteins that act as catalysts