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






2. Rate of Diffusion/Effusion formula






3. Point at which vapor pressure=air pressure above






4. Energy required to break a bond






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






6. Metal oxide + H20 ->






7. 1 sigma bond - 2 pi bonds






8. AX3E2






9. Dirrect Method Formula






10. (organics) two carbons






11. Change without heat transfer between the system and its surroundings






12. R=






13. Point at which the titrated solution changes color






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






15. Force acting over distance






16. OH¹?






17. Atoms with the same number of protons but a different number of neutrons






18. Gas to solid






19. Expresses how the concentrations depend on time






20. S²?






21. STP






22. 90°&120° - dsp^3






23. 1.Calculate moles of each atom in molecule 2.Divide each mole number by smallest mole number 3.If necessary - multiply every mole number to get a whole number 4.Moles of each atom is subscript in empirical formula






24. Driving force of the electrons






25. q cal = ?






26. 90° - d^2sp^3






27. 109.5° - sp^3






28. The intermolecular attractions resulting from the constant motion of electrons and the creation of instantaneous dipoles






29. Mole Fraction






30. A measure of randomness or disorder






31. For significant digits - trailing zeros _____ significant






32. Average Kinetic Energy Formula






33. .69/k






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






35. These orbitals are spherical






36. Unit of electrical potential; J/C






37. 101 -325 Pa






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






39. (organics) four carbons






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






41. (organics) one carbon






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






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






44. Boiling point elevation formula






45. A monoatomic cation takes name from...






46. If Q>Ksp






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






48. Proton donors






49. All (though really not all - but for our purposes all) ________ compounds are NOT electrolytes






50. Molarity (M)