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






2. How to Balance a Redox Equation






3. Liquid to solid






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






5. The part of the universe one is focused upon (in thermodynamics)






6. 180 - sp






7. High-speed electrons






8. Bomb Calorimeter






9. Does the same as equilibrium expression - except it uses initial concentrations






10. Electron pairs found in the space between the atoms






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






12. The rest of the universe (in thermodynamics)






13. Speed of Diffusion/Effusion formula






14. Driving force of the electrons






15. Spontaneous emission of radiation






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






17. Energy needed to vaporize a mole of a liquid






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






19. Generally insoluble anions (names)






20. Pure metal or metal hydride + H20 ->






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






22. Hydroxides are soluble or insoluble?






23. Lowers activation energy






24. (organics) four carbons






25. PV=nRT






26. Solid to gas






27. The minimum energy that molecules must possess for collisions to be effective - Ea






28. Temperature-pressure point after which gas can no longer form liquid






29. Change in Energy (AE) = ? (in terms of work)






30. Different form of same element






31. STP






32. Kinetic Energy is proportional to ______






33. Oxidation # of Compounds






34. A homogeneous mixture with 1 phase






35. (msubs) Can only be +1/2 or -1/2






36. Ester suffix






37. Two molecules with identical connectivity but different geometries






38. Forward rxn occurs when






39. Molecules' tendency to stick to one another






40. NO2?






41. For significant digits - leading zeros ____ significant






42. Calculation from K to C






43. Energy needed to break a bond






44. Force acting over distance






45. Change in moles (An) =?






46. Atoms with the same number of protons but a different number of neutrons






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






48. Heat capacity formula






49. When more than one valid Lewis structure can be written for a particular molecule; represented by double-headed arrows






50. r=k[A]^2