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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. Similar to atomic orbitals - except between molecules






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






3. Point at which liquid?gas occurs






4. The reactant in the oxidizing reaction that forces the reduction reaction to occur






5. These orbitals are spherical






6. Within a sublevel - place one e? per orbital before pairing them

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






8. Symbol for Enthalpy






9. Hydroxides are soluble or insoluble?






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






11. AX4E






12. Delta H (AH) = ?






13. 6.022x10^23






14. (organics) six carbons






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






16. Elements which have all electrons paired and relatively unaffected by magnetic fields






17. Ketone suffix






18. E=mc^2






19. Releases/gives off heat (negative value)






20. Osmotic pressure formula






21. Instrument used to measure the pressure of a not-atmospheric gas (open or closed system)






22. (# of lone pair e-)+1/2(# of shared e-)






23. =vM2/M1






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

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25. If anion ends in -ite - acid name ends in...






26. High-speed electrons






27. Oxidation # of Halogens






28. These orbitals are perpendicular






29. Significant Digits of counted things






30. The chemical formed when a base accepts a proton






31. r=k[A]^2






32. If Q<Ksp






33. Significant Digits of Conversion Factors






34. The part of the universe one is focused upon (in thermodynamics)






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






36. Formula used when diluting stock solution (to find amount of water or stock needed)






37. AX2 - AX2E3






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






39. Solid to gas






40. A solution that resists a change in its pH






41. Speed of Diffusion/Effusion formula






42. Does the same as equilibrium expression - except it uses initial concentrations






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






44. 2 or more covalently bonded atoms






45. When two elements form a series of compounds - the ratios of the masses of the second element that combine with 1g of the first element can always be reduced to whole numbers






46. A device in which chemical energy is changed to electrical energy






47. Actual Yield/Theoretical Yield*100%






48. Organic w/ -OH group






49. Loss of electrons - increase in oxidation #






50. Electrons in a hydrogen atom move around the nucleus only in circular orbits







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