Chemistry B Review

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Across
  1. 4. Equivalent to 1 atm or 760 torr
  2. 7. Reaction which releases energy
  3. 9. Temperature scale where zero means molecular motion stops
  4. 11. high energy electron from radioactive decay
  5. 12. Average kinetic energy on a molecular level
  6. 14. 6.022 x 10^23
  7. 17. When large atoms decay and release energy
  8. 19. Change of state happens when air pressure equals vapor pressure above a liquid
  9. 20. Point on a phase diagram where all three states of matter are in equilibrium
  10. 21. The time it takes for roughly half of a radioactive sample to decay
  11. 23. air pressure above a liquid at equilibrium
  12. 25. When small atoms (like 2H and 3H) combine to form larger atoms (He)
  13. 26. Amount in mol/L of a solute in a solvent
Down
  1. 1. When molecular bonds are broken and rearranged to form a different molecule(s)
  2. 2. High energy helium nucleus from radioactive decay
  3. 3. Organizes all elements by number of protons
  4. 5. Theory that explains chemical reactions happen when molecules strike each other
  5. 6. The fluid that dissolves other fluids
  6. 8. Reaction which absorbs energy
  7. 10. Average force of molecules striking a wall or object
  8. 13. The symbol amu (aka u) stands for
  9. 15. When a solvent cannot dissolve any more solute
  10. 16. The resulting mixture of a solvent and a solute
  11. 18. Radiation that can harm DNA and other living tissue (like ultra-violet, x-ray, and gamma)
  12. 22. Principle that predicts how equilibria will react to disturbances
  13. 24. Something that is dissolved in a fluid