Chemistry of Life Crossword Puzzle

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