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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. AX5






2. Substances w/ critical temperatures below 25°C






3. The likelihood that a rxn will occur "by itself"






4. IMF that occurs with FON






5. High-speed electrons






6. Half cell in which oxidation occurs






7. 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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8. Releases/gives off heat (negative value)






9. Larger molecules which have higher mass and therefore electron density have stronger...






10. Ionizes to produce H+ ions






11. Molality =






12. If K<1 - then Gº>0 and reaction will be...at chemical equilibrium






13. The lowest energy configuration for an atom is the one having the max number of unpaired electrons allowed by the Pauli principle in a set of degenerate orbitals

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14. Ending for alcohols






15. Change in moles (An) =?






16. kf of water






17. neutron (symbol)






18. r=k[A]






19. Vapor pressure lowering - boiling point elevation - freezing point depression - osmotic pressure






20. Ptotal=P1+P2+P3+...

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21. (organics) four carbons






22. Entropy in the universe is always...






23. How to Find a Weighted Average






24. AX3E






25. (organics) ten carbons






26. Change in Energy = ? (in terms of constant pressure; for gasses)






27. Liquid to gas






28. As protons are added to the nucleus - electrons are similarly added






29. Force that holds atoms together






30. Energy required for liquid?gas






31. (organics) two carbons






32. In a titration - the point where moles of acid are equal to moles of base (just before the indicator changes color)






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






34. (N) number of equivalents per liter of solution






35. Dalton's Law of Partial Pressures (to find partial pressure formula)






36. SO4²?






37. All _________ compounds are electrolytes






38. AX5E






39. Function in which it doesn't matter HOW the changes take place - only that they do; you can use to formula Final - Initial ( i.e. energy - pressure - volume - temperature - sort of moles)






40. When n=5 ->2 - color=






41. Substances that form OH- when dissolved in water; proton acceptors






42. In a given atom no two electrons can have the same set of four quantum numbers






43. l=2






44. (organics) triple-bonded compound






45. H?+NH3?NH4






46. Forward rxn occurs when






47. (organics) nine carbons






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






49. C2H3O2¹?






50. Determined by the formula h/m(in kg)v - (v=velocity)