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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. STP






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






3. Weakest IMFs - found in all molecules






4. PO4³?






5. How to Find an Empirical Formula Given Percentages






6. Idea Gas Law (actual rules)






7. Organic reaction in which water breaks apart a molecule (splitting into two hydroxides)






8. Kinetic Energy per mol






9. Combined Gas Law Formula






10. (organics) three carbons






11. If K<1 - then Gº>0 and reaction will be...at chemical equilibrium






12. Electrons in a hydrogen atom move around the nucleus only in circular orbits






13. Equation to find Ea from reaction rate constants at two different temperatures






14. When gas expands ...






15. Measure of the average kinetic energy of all the particles in a substance






16. If Q>Ksp






17. The chemical formed when a base accepts a proton






18. AX3E2






19. Variable for type of orbital






20. How to Find a Weighted Average






21. % yield






22. Significant Digits of Conversion Factors






23. Melting






24. Anions or cations as needed to produce a compound with non net charge






25. Specific heat of water






26. For significant digits - trailing zeros _____ significant






27. AX5






28. Matter can't be created nor destroyed






29. Group 1 metals






30. J/°Cmol or J/Kmol






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






32. 1/[A]=kt + 1/[A]0






33. A measure of resistance of an object to a change in its state of motion






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






35. Reactant that's completely used up in a chemical reaction






36. PV=nRT






37. A method of investigation involving observation and theory to test scientific hypotheses






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






39. The driving force for a spontaneous is an increase in entropy of the universe






40. (organics) five carbons






41. Function in which it doesn't matter HOW the changes take place - only that they do; you can use to formula Final - Initial ( i.e. energy - pressure - volume - temperature - sort of moles)






42. The rest of the universe (in thermodynamics)






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






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






45. Degree of disorder in a system






46. Change that occurs at constant temperature






47. AX5E






48. Newton's Second Law






49. Expresses how the concentrations depend on time






50. Point at which vapor pressure=air pressure above