Chemistry Vocab

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Across
  1. 3. reactions that use energy to react
  2. 6. type of bond that forms when atoms share electrons
  3. 8. the substances formed during the reaction
  4. 10. concentration of H ions in a solution
  5. 11. type of bond that forms when two oppositely charged atoms are attracted to each other
  6. 14. reactions that release energy when reacting
  7. 15. neutrally charged particles
  8. 17. atoms of an element with different numbers of neutrons
  9. 18. releases H ions in water
  10. 20. protein catalysts
Down
  1. 1. forces of attraction between positively and negatively charged parts of molecules
  2. 2. a substance that lowers the activation energy
  3. 4. the starting substances
  4. 5. process by which atoms in substances are reorganized into different substances
  5. 7. energy the minimum amount of energy needed to get reactants to react
  6. 9. a pure substance that cannot be broken down
  7. 10. positively charged particles
  8. 12. the center of the atom
  9. 13. a pure substance formed when two or more different elements combine
  10. 16. negatively charged particles
  11. 19. releases OH ions in water