Chemistry of Life Crossword Puzzle

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Across
  1. 2. a scale from 0 to 14 reflecting the concentration of hydrogen ions in solution
  2. 6. particles with no charge
  3. 8. compound that forms hydrogen ions in solution
  4. 9. compound that produces hydrogen ions in solution
  5. 10. atom or group of atoms that has acquired a positive or negative charge as a result of gaining or losing electrons
  6. 11. attraction between molecules of the same substance
  7. 12. negatively charged particle; located outside the atomic nucleus
  8. 13. large compound formed from combinations from many monomers
  9. 14. element or compound produced by a chemical reaction
  10. 16. bond formed by the sharing of electrons between atoms
  11. 19. substance made up of only one kind of atom
Down
  1. 1. small unit that can form together with other small units to create a polymer
  2. 2. positively charged particles
  3. 3. energy needed to get a reaction started
  4. 4. smallest unit of most compounds
  5. 5. atoms of the same element that contain different number of neutrons
  6. 7. mixture of water and non-dissolved materials
  7. 15. substance that speeds up the rate of a chemical reaction element/substance made up of only one kind of atom
  8. 17. basic unit of matter
  9. 18. protein that acts as a biological catalyst