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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. Absorbs/takes in heat (positive value)






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

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3. J/°Cmol or J/Kmol






4. OH¹?






5. (organics) nine carbons






6. (organics) three carbons






7. Cation first - anion second






8. 0°C and 1 atm






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






10. Liquid to solid






11. Pure metal or metal hydride + H20 ->






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






13. PV=nRT






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






15. A neutral molecule/ion having a lone e- pair that can be used to form a bond to a metal ion






16. Phase change from gas to solid






17. If Q>Ksp






18. 180° - sp






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






20. Positive enthalpy - heat flows into system






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






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






23. Compound in which there is a bond between two non-metals; when naming them you use the numerical prefixes (may NOT be reduced i.e. S2F4 may not become SF2)






24. Bond bond in which atoms aren't so different that electrons are completely transferred but are different enough that unequal sharing occurs






25. ClO4¹?






26. neutron (symbol)






27. R=






28. Dalton's Law of Partial Pressures (to find partial pressure formula)






29. 1/([A]0*k)






30. Oxidation # of Halogens






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






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






33. Increase Pressure






34. Speed per molecule of gas






35. Half cell in which reduction occurs






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






37. Mixing of gases






38. When _____ significant digits - round answer to least significant digit






39. Rate of Diffusion/Effusion formula






40. l=0






41. Energy required to break a bond






42. Force acting over distance






43. 760 mmHg - 760 torr






44. The total energy of the universe is constant - all systems tend towards minimum energy






45. These orbitals are perpendicular






46. CrO4²?






47. Force per unit area






48. HF+ OH??H2O






49. When n=4 ->2 - color=






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