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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. 96 -485 C/mol e-






2. Has values from 0 to (n-1); tells shape of atomic orbitals






3. Work = ?






4. Oxidation # of free elements






5. Phase change from solid to gas






6. Kinetic Energy per mol






7. Gas to solid






8. (organics) double-bonded compound






9. In covalent bonds - prefixes are used to tell...






10. Ester suffix






11. The rest of the universe (in thermodynamics)






12. Mol/L - concentration of a solution






13. AX4






14. Gain of electrons - decrease in oxidation #






15. Pairs of electrons localized on an atom






16. As protons are added to the nucleus - electrons are similarly added






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






18. 0.00°C - 1 atm






19. A solution that resists a change in its pH






20. OIL RIG






21. AX2E - AX2E2






22. Organic w/ -OH group






23. Moles of solute/volume of soln(L)






24. C2O4²?






25. Similar to atomic orbitals - except between molecules






26. (organics) one carbon






27. Mass #






28. All cations are soluble with sulfate EXCEPT






29. When ____ significant digits - round answer to least decimal place






30. Unusually strong dipole forces found when H is bonded to N - O - or F






31. IMF that occurs with FON






32. If Q>Ksp






33. In a titration - the point where the indicator changes (just after moles of solid are equal to moles of base)






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






35. Planck's constant - used to calculate energy w/frequency






36. The total entropy is always increasing - all systems tend towards maximum entropy






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






38. 1 sigma bond






39. (organics) seven carbons






40. A solid or gas that can be formed when 2 or more aqueous reactants come together






41. (organics) two carbons






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






43. Ending for alcohols






44. Amount of heat needed to change a system by 1°C






45. l=2






46. Group 2 metals






47. Type of system in which the energy may escape - but the mass is conserved






48. Oxidation # of Compounds






49. When more than one valid Lewis structure can be written for a particular molecule; represented by double-headed arrows






50. The chemical formed when an acid donates a proton