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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. Reactant which doesn't get used up completely in a chemical reaction






2. Lowers activation energy






3. Uses a spontaneous redox rxn to generate electrical energy - consists of 2 half cells






4. O²?






5. l=2






6. Where oxidation occurs






7. Type of system in which nothing is transfered (no mass or energy); ideal






8. Color of Li (flame test)






9. Assumes that a molecule is composed of atoms that are bound together by sharing pairs of electrons using the atomic orbitals of the bound atoms






10. Kinetic Energy per molecule






11. (organics) one carbon






12. Color of Sr (flame test)






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






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






15. E?s fill the lowest energy orbital first - then work their way up






16. The measurement of heat changes






17. The actual amount of product produced in an experiment






18. Where reduction occurs






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






20. pH=






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






22. Phase change from solid to gas






23. Describe various properties of one orbital






24. #NAME?






25. Forward rxn occurs when






26. A solid or gas that can be formed when 2 or more aqueous reactants come together






27. Ptotal=P1+P2+P3+...

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28. H + donor






29. Measure of the change in enthalpy






30. The chemical formed when a base accepts a proton






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






32. Determined by the formula h/m(in kg)v - (v=velocity)






33. Degree of disorder in a system






34. Point where acid completely neutralizes base






35. How to Find an Empirical Formula Given Percentages






36. Isotope






37. SI unit of energy; Kg*m^2/s^2






38. Variable for type of orbital






39. J/°Cmol or J/Kmol






40. H?+OH??H2O






41. These orbitals are perpendicular






42. How to Find an Empirical Formula Given Grams






43. Puts H? into solution






44. AX5






45. Speed of Diffusion/Effusion formula






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






47. 1 sigma bond - 1 pi bond






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






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






50. Happens at lines in phase change charts