Chapter 2 Review (Lessons 1 & 2)

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Across
  1. 1. the amount of energy needed to raise the temperature of water
  2. 7. on the periodic table it tells us the number of protons in an atom's nucleus
  3. 9. when water molecules stick to other water molecules
  4. 10. substance in a solution that is dissolved
  5. 11. center of the atom
  6. 14. bond formed when electrons are shared between atoms
  7. 16. when water molecules stick to different substances
  8. 17. mixture of water and undissolved material
  9. 18. a material where all components are evenly distributed
  10. 19. solution with a pH that is greater than 7; produces OH- ions in solution
  11. 20. substance in a solution that does the dissolving
  12. 22. the universal solvent
  13. 23. bond formed when electrons are transferred from one atom to another
Down
  1. 2. basic unit of matter
  2. 3. solution with a pH that is less than 7; produces H+ ions in solution
  3. 4. a positively or negatively charged atom
  4. 5. subatomic particle with a negative charge
  5. 6. subatomic particle with a positive charge
  6. 7. on the periodic table it tells us the total protons + neutrons in an atom's nucleus
  7. 8. a weak acid or base that prevents sharp changes in pH
  8. 12. pure substance of one atom
  9. 13. atoms of the same element with different numbers of neutrons
  10. 15. material composed of 2 or more elements or compounds that are physically combined
  11. 21. subatomic particle with a neutral charge
  12. 24. substance formed by the chemical combination of two or more elements