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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. Connects the 2 half cells in a voltaic cell






2. When two elements form a series of compounds - the ratios of the masses of the second element that combine with 1g of the first element can always be reduced to whole numbers






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






4. Faraday's constant






5. 760mmHg/Torr






6. Ka=[products]^m/[reactants]^n






7. Amount of product produced when limiting reactant is used up






8. Occupies the space above and below a sigma bond






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






10. Rate of Diffusion/Effusion formula






11. (organics) one carbon






12. Ecell= E°cell -RT/nF x lnQ






13. All cations are soluble with sulfate EXCEPT






14. When n=4 ->2 - color=






15. Symbol for Enthalpy






16. ?T=k*m(solute)






17. Substance being dissolved in a solution (lower [ ])






18. Proton donors






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






20. 0°C and 1 atm






21. Mass/volume






22. AX3E2






23. The rest of the universe (in thermodynamics)






24. ?H when 1 mol of bonds is broken in the gaseous state






25. OIL RIG






26. Change that occurs at constant temperature






27. Anions or cations as needed to produce a compound with non net charge






28. A measure of randomness or disorder






29. Half-life equation






30. If anion ends in -ite - acid name ends in...






31. A method of investigation involving observation and theory to test scientific hypotheses






32. What is defined by you taken from the whole universe






33. We cannot simultaneously determine an atom's exact path or location






34. All forms of energy except for heat






35. 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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36. Energy needed to vaporize a mole of a liquid






37. AX4E2






38. 1.Volume of individual particles can be assumed to be zero 2.The particles are in constant motion - which causes pressure 3.Particles exert no forces on each other 4.The average kinetic energy of the particles is directly affected by temperature(K)






39. # bonding e- - # antibonding e-/2






40. Electron pairs found in the space between the atoms






41. Ability of an atom in a molecule to attract shared electrons to itself






42. F¹?






43. Energy can't be created nor destroyed






44. Raoult's Law - relations between vapor pressure and concentrations






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






46. A solution used in titrations whose concentration is known






47. Symbol for Total Heat absorbed or released






48. AX6






49. HF+ OH??H2O






50. [A]=-kt + [A]0