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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. CN¹?






2. The reactant in the oxidizing reaction that forces the reduction reaction to occur






3. Passage of gas through tiny orifice






4. Half-life equation






5. l=1






6. q cal = ?






7. AX5E






8. 1/([A]0*k)






9. Forward rxn occurs when






10. Pure metal or metal hydride + H20 ->






11. Proton acceptors - must have an unshared pair of e?s






12. AX5






13. % yield






14. Force that holds atoms together






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






16. Spontaneous emission of radiation






17. r=k[A]






18. (organics) nine carbons






19. Kinetic Energy per molecule






20. Energy required for liquid?gas






21. If a system @equilibrium is stressed - the system will shift so as to reestablish equilibrium

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22. For colligative properties for electrolytes - the # of mols of ions/ mols of solute

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23. Color of Ba (flame test)






24. If Q<Ksp






25. (organics) ten carbons






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






27. Coffee Cup Calorimeter






28. 90° - d^2sp^3






29. Heat needed to change 1 g of substance to 1°C






30. PO4³?






31. Measure of the change in enthalpy






32. Elements in groups 3-12






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






34. Releases/gives off heat (negative value)






35. K=[C]^l[D]^m/[A]^j[B]^k; products/reactants; solids don't count






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






37. Atomic #






38. ClO3²?






39. Molality =






40. Driving force of the electrons






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






42. A weak acid that changes color at or near the equivalence point






43. Occupies the space above and below a sigma bond






44. 1/[A]=kt + 1/[A]0






45. Stronger IMF= lower... weaker IMF= higher...






46. Actual Yield/Theoretical Yield*100%






47. Universal IMF for nonpolar molecules






48. Pairs of electrons localized on an atom






49. Type of system in which the energy and mass may leave or enter






50. Variable for type of orbital