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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. Speed of Diffusion/Effusion formula






2. Stronger IMF= lower... weaker IMF= higher...






3. Oxidation # of Compounds






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






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

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6. A solution that resists a change in its pH






7. Tools NEEDED for dilution






8. Change without heat transfer between the system and its surroundings






9. Pure metal or metal hydride + H20 ->






10. Isotope






11. Non-Ideal Gas Conditions






12. Substances above the critical temperature and pressure in which the pressure is so high that density and flowing ability of a "gas" resembles that of a liquid






13. A homogeneous mixture with 1 phase






14. n+m (these are orders of reactants)






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






16. Amount of gravitational force exerted on an object






17. Arrhenius equation






18. Color of Sr (flame test)






19. I¹?






20. Molarity (M)






21. Phase change from solid to gas






22. The reactant in the reduction reaction that forces the oxidation reaction to occur






23. Boltzmann constant - used in calculating speed of gas per molecule






24. Different form of same element






25. r=k






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






27. 1/[A]=kt + 1/[A]0






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






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






30. High-energy light






31. If anion ends in -ide - acid name ends in






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






33. The reactant that is being oxidized - brings about reduction






34. AX3






35. How to Find a Weighted Average






36. 90°&120° - dsp^3






37. Molecules' tendency to stick to one another






38. For significant digits - trailing zeros _____ significant






39. The transfer of energy between two objects due to temperature difference






40. Electron pairs found in the space between the atoms






41. Unusually strong dipole forces found when H is bonded to N - O - or F






42. Average speed of gas






43. (organics) nine carbons






44. Change in moles (An) =?






45. (organics) seven carbons






46. Unit of electrical potential; J/C






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






48. Mixing of gases






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






50. Color of Cs (flame test)