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AP Chemistry

Subjects : science, ap, chemistry
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Color of Li (flame test)






2. High-speed electrons






3. Cl¹?






4. 760 mmHg - 760 torr






5. Symbol for the heat absorbed or lost molecularly (PER MOLE)






6. An element with several different forms - each with different properties (i.e. graphite & diamond)






7. The rest of the universe (in thermodynamics)






8. In going from a particular set of reactants to a particular set of products - the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps

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9. (# of lone pair e-)+1/2(# of shared e-)






10. C=2.9979*10^8 m/s






11. Thickness






12. Energy required to break a bond






13. Planck's constant - used to calculate energy w/frequency






14. l=3






15. Point where acid completely neutralizes base






16. A measure of resistance of an object to a change in its state of motion






17. The total entropy is always increasing - all systems tend towards maximum entropy






18. A device used to measure Delta H






19. OH¹?






20. Force that holds atoms together






21. Point at which vapor pressure=air pressure above






22. Mol of solute/kg of solvent






23. Composition Formula






24. Mass percent






25. The total energy of the universe is constant - all systems tend towards minimum energy






26. When n=3 ->2 - color=






27. K






28. Puts H? into solution






29. AP doesn't deal with ...-order reaction - don't pick it!






30. Occupies the space above and below a sigma bond






31. Oxidation # of Halogens






32. Mol/kg of solvent - used in calculating colligative properties






33. Force acting over distance






34. Wavelength symbol






35. Positive ion






36. F¹?






37. Point at which liquid?gas occurs






38. J/°Cmol or J/Kmol






39. Molarity (M)






40. Oxidation # of free elements






41. Energy (definition)






42. The measurement of heat changes






43. Work = ?






44. Colors of Reaction when (MnO4 -) --> (Mn2+)






45. ln[A]=-kt + ln[A]0






46. Temperature-pressure combination at which solid - liquid - and gas states appear






47. Dirrect Method Formula






48. C2O4²?






49. Color of Sr (flame test)






50. AX5