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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. Elements in groups 3-12






2. Raoult's Law - relations between vapor pressure and concentrations






3. (organics) eight carbons






4. 120° - sp^2






5. Dirrect Method Formula






6. neutron (symbol)






7. For colligative properties for electrolytes - the # of mols of ions/ mols of solute

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8. The rest of the universe (in thermodynamics)






9. Speed of Diffusion/Effusion formula






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






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






12. Stronger IMF= lower... weaker IMF= higher...






13. For significant digits - trailing zeros _____ significant






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






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






16. Oxidation # of Polyatomic Ions






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






18. ln[A] vs. time is a ...-order reaction






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






20. These orbitals are spherical






21. Peak of energy diagram






22. Involves quantum numbers






23. Boiling point - melting point - viscosity - vapor pressure - surface tension






24. A single substance that may be an acid or a base (i.e. water)






25. (organics) single-bonded compound






26. Compound in which there is a bond between a metal and a non-metal; when naming - pay attention to ionic charges on periodic table (may be reduced)






27. 96 -485 C/mol e-






28. Substance that - when dissolved - is conductive






29. All cations are soluble with bromide - chloride and iodide EXCEPT






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






31. Colors of Reaction when (MnO4 -) --> (Mn2+)






32. 109.5° - sp^3






33. Molecules' tendency to stick to the container






34. Henry's Law - solubility of gases is directly proportional to the partial pressure of the gas






35. The measurement of heat changes






36. I=moles of particles/moles of solute dissolved

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37. When n=6 ->2 - color=






38. # bonding e- - # antibonding e-/2






39. AX2E - AX2E2






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






41. Mols A/ total mols - XA






42. Donates a single H+ Ion (... other prefixes also)






43. Absorbs/takes in heat (positive value)






44. Freezing point depression formula






45. (organics) double-bonded compound






46. (# of valence e- on free atom) - (# of valence e- assigned to atom in molecule)






47. Ester suffix






48. When n=3 ->2 - color=






49. 101 -325 Pa






50. C2H3O2¹?