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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. Pairs of electrons localized on an atom






2. Where reduction occurs






3. Oxidation # of free elements






4. Group 1 - Ammonium - Nitrates - Acetates - Sulfates - Halides






5. Polyatomic Ions (bonding)






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






7. q cal = ?






8. Mass #






9. If heat capacity isn't mentioned - you can assume that q of cal is = ?






10. Force per unit area






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






12. Boiling point - melting point - viscosity - vapor pressure - surface tension






13. Transition metals with ammonia - hydroxide - cyanide or thiocyanate form...






14. l=0






15. 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)






16. If a change is imposed on a system at equilibrium - the position of the equilibrium will shift in a direction that tends to reduce that change

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17. Melting






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






19. Bomb Calorimeter






20. Like dissolves...






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






22. Delta H (AH) = ?






23. 1/[A] vs. time is a ...-order reaction






24. Speed of Diffusion/Effusion formula






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






26. Lowers activation energy






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






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






29. x can be ignored when % ionization is <5%






30. Half cell in which reduction occurs






31. Force that holds atoms together






32. Color of Ca (flame test)






33. Energy required to break a bond






34. Kinetic Energy per molecule






35. C2O4²?






36. frequency symbol






37. Loss of electrons - increase in oxidation #






38. Has values from -l to l - including zero; tells orientation of the orbital relative to other orbitals






39. (organics) six carbons






40. 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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41. Change that occurs at constant temperature






42. BrO3¹?






43. Ionizes to produce OH- Ions






44. Phase change from solid to gas






45. A homogeneous mixture with 1 phase






46. .69/k






47. Carbon - hydrogen - oxygen compounds






48. Describe various properties of one orbital






49. AX2E - AX2E2






50. ... compounds are most conductive