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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. r=k[A]






2. The intermolecular attractions resulting from the constant motion of electrons and the creation of instantaneous dipoles






3. The entropy of a pure perfectly formed crystal @0K is 0






4. Composition Formula






5. r=k






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






7. Absorbs/takes in heat (positive value)






8. If heat capacity isn't mentioned - you can assume that q of cal is = ?






9. Spectrum of light when an electron drops to energy level n=2






10. Oxidation # of Polyatomic Ions






11. Ether prefix






12. Resistance to flow






13. Substance that - when dissolved - is conductive






14. Oxoacid solution (such as HSO4-) forms...






15. A given compound always has exactly the same proportion of elements by mass






16. Theoretical yield-experimental yield/theoretical yieldx100






17. pH=






18. Lowers activation energy






19. These orbitals are diagonal






20. Weakest IMFs - found in all molecules






21. AX3E2






22. Melting






23. Ideal Gas Law Formula






24. Kinetic Energy per mol






25. Elements which have all electrons paired and relatively unaffected by magnetic fields






26. Point where acid completely neutralizes base






27. Puts OH? into solution






28. Reactant that's completely used up in a chemical reaction






29. Colors of Reaction when (Cr2O7 2-) --> (Cr 3+)






30. Average speed of gas






31. Moles of solute/volume of soln(L)






32. Within a sublevel - place one e? per orbital before pairing them

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33. Color of Cs (flame test)






34. 90° - d^2sp^3






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






36. Entropy in the universe is always...






37. The mixing of native atomic orbitals to form special orbitals for bonding






38. Organic reaction in which two functional groups come together - resulting in the release of water






39. F¹?






40. Generally insoluble anions (names)






41. Gain of electrons - decrease in oxidation #






42. Where reduction occurs






43. High-speed electrons






44. IMF that exists in polar molecules






45. AX4E






46. Connects the 2 half cells in a voltaic cell






47. A measure of randomness or disorder






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






49. (organics) three carbons






50. Negative enthalpy - heat flows into surroundings