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






2. R in ideal gas law






3. Gas to liquid






4. OH¹?






5. 101 -325 Pa






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






7. Freezing point depression formula






8. 1.Calculate moles of each atom in molecule 2.Divide each mole number by smallest mole number 3.If necessary - multiply every mole number to get a whole number 4.Moles of each atom is subscript in empirical formula






9. Larger molecules which have higher mass and therefore electron density have stronger...






10. 1/[A]=kt + 1/[A]0






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






12. H + donor






13. Molality =






14. Group 2 metals






15. High-energy light






16. 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)






17. Point at which liquid?gas occurs






18. Polyatomic Ions (bonding)






19. To find activation energy use the...






20. AX5






21. Ka=[products]^m/[reactants]^n






22. Kinetic Energy per mol






23. E?s fill the lowest energy orbital first - then work their way up






24. AX4E






25. Oxidation # of Halogens






26. ClO2¹?






27. CO3²?






28. AX3






29. Volume of gas @STP






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






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






32. Half-life equation






33. Increase Volume






34. 0.00°C - 1 atm






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






36. Thickness






37. l=3






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






39. 2 or more covalently bonded atoms






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






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






42. #NAME?






43. Calculation from K to C






44. ?T=k*m(solute)






45. Different form of same element






46. How to Find a Weighted Average






47. Chemical composition of dry ice






48. Energy required to break a bond






49. negative ion






50. q H2O = ?