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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. Each orbital can hold two e?s each w/ opposite spins






2. Idea Gas Law (actual rules)






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






4. An element with several different forms - each with different properties (i.e. graphite & diamond)






5. Melting






6. Speed of Diffusion/Effusion formula






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






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






9. Amine prefix






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






11. .69/k






12. (A) - C/s






13. Electron pairs found in the space between the atoms






14. Amount of product produced when limiting reactant is used up






15. SO4²?






16. If needed - indicate charge of metal(cation) by...






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






18. Color of Ca (flame test)






19. Function in which it doesn't matter HOW the changes take place - only that they do; you can use to formula Final - Initial ( i.e. energy - pressure - volume - temperature - sort of moles)






20. Combined Gas Law Formula






21. Color of Ba (flame test)






22. 1/[A]=kt + 1/[A]0






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






24. If Q<Ksp






25. Where oxidation occurs






26. pH=






27. Newton's Second Law






28. Pure metal or metal hydride + H20 ->






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






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






31. Only contains ions that change in reaction






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






33. A method of investigation involving observation and theory to test scientific hypotheses






34. Puts OH? into solution






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






36. Osmotic pressure formula






37. Mass reactants= mass products






38. n+m (these are orders of reactants)






39. NH4¹?






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






41. Substances that form OH- when dissolved in water; proton acceptors






42. l=1






43. Unit of electrical potential; J/C






44. In ideal gas law problem - when it says "atmospheric" ...






45. Force that holds atoms together






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






47. (organics) eight carbons






48. Matter can't be created nor destroyed






49. CN¹?






50. AX4E2