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






2. Mass percent






3. Elements in groups 3-12






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






5. Peak of energy diagram






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






7. Thickness






8. Instrument used to measure the pressure of atmospheric gas






9. Energy required to break a bond






10. Oxidation # of Polyatomic Ions






11. The mixing of native atomic orbitals to form special orbitals for bonding






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






13. The energy required to raise 1 g of substance 1 degree C






14. SO3²?






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






16. J/°Cmol or J/Kmol






17. Non-Ideal Gas Conditions






18. Uses a spontaneous redox rxn to generate electrical energy - consists of 2 half cells






19. Ptotal=P1+P2+P3+...

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20. Proton (symbol)






21. Oxidation # of Oxygen






22. Assumes that a molecule is composed of atoms that are bound together by sharing pairs of electrons using the atomic orbitals of the bound atoms






23. l=1






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






25. AX5E






26. (organics) single-bonded compound






27. How to Find a Weighted Average






28. Vapor pressure lowering - boiling point elevation - freezing point depression - osmotic pressure






29. Passage of gas through tiny orifice






30. Kinetic Energy per mol






31. Delta H (AH) = ?






32. 2 or more covalently bonded atoms






33. C2H3O2¹?






34. Cr2O7²?






35. Organic w/ -O-






36. Kinetic Energy of an individual particle formula






37. If anion ends in -ate - acid name ends in...






38. E=mc^2






39. Solution used in titration






40. AX3E






41. O²?






42. Coffee Cup Calorimeter






43. Tools NEEDED for dilution






44. Raising heat - adding catalyst - heighten concentration - bigger surface area






45. AX3E2






46. Speed of light - C






47. r=k[A]






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






49. How fast or slow a reaction occurs - becomes slower as it reaches equilibrium






50. ClO3²?