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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. Positive ion






2. The heat changed in a chemical reaction.






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






4. Peak of energy diagram






5. What is defined by you taken from the whole universe






6. These orbitals are diagonal






7. I¹?






8. Substances w/ critical temperatures below 25°C






9. Point at which solid?liquid occurs






10. MnO4¹?






11. The amount of energy/heat required to raise some substance 1 degree C






12. (organics) three carbons






13. Solid to gas






14. Organic reaction in which two functional groups come together - resulting in the release of water






15. AX2E - AX2E2






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






17. Everything in the universe that is not defined by you as part of the system






18. A monoatomic anion is named by taking...






19. Mols A/ total mols - XA






20. Thickness






21. BrO3¹?






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






23. The lowest energy configuration for an atom is the one having the max number of unpaired electrons allowed by the Pauli principle in a set of degenerate orbitals

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






25. Speed per molecule of gas






26. Mass percent






27. AX4E






28. negative ion






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






30. neutron (symbol)






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






32. (organics) five carbons






33. An equilibrium expression






34. Amount of gravitational force exerted on an object






35. S²?






36. The reactant that is being reduced - brings about oxidation






37. AX3E2






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






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






40. Lowers activation energy






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






42. Nonmetal oxide + H2O ->






43. Neutralization Reaction (general format) (net ionic of which is always (H+) + (OH-) --> (H2O))






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

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45. Substance in which something is dissolved in a solution (higher [ ])






46. Within a sublevel - place one e? per orbital before pairing them

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






48. Ionizes to produce H+ ions






49. ?Hsoln=?H1+?H2+?H3+...






50. A solution that resists a change in its pH