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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. Increase Pressure






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






3. Has values from -l to l - including zero; tells orientation of the orbital relative to other orbitals






4. Boiling point elevation formula






5. Heat needed to change 1 g of substance to 1°C






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






7. Dirrect Method Formula






8. I¹?






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






10. Point at which solid?liquid occurs






11. OH¹?






12. CrO4²?






13. Half-life equation






14. Change that occurs at constant temperature






15. Volume of gas @STP






16. (organics) one carbon






17. Organic w/ -O-






18. AX6






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






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






21. Unit of electrical potential; J/C






22. ?T=k*m(solute)






23. For significant digits - leading zeros ____ significant






24. Reactant that's completely used up in a chemical reaction






25. These orbitals are spherical






26. Mass reactants= mass products






27. ln[A] vs. time is a ...-order reaction






28. Gas to liquid






29. Only contains ions that change in reaction






30. Speed of light - C






31. (organics) nine carbons






32. 101 -325 Pa






33. ln[A]=-kt + ln[A]0






34. Lowers activation energy






35. CN¹?






36. 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






37. (organics) three carbons






38. Organic reaction in which two functional groups come together - resulting in the release of water






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






40. Substance that - when dissolved - is conductive






41. Work = ?






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


43. 1 sigma bond






44. Kinetic Energy per molecule






45. All (though really not all - but for our purposes all) ________ compounds are NOT electrolytes






46. The likelihood that a rxn will occur "by itself"






47. Bond bond in which atoms aren't so different that electrons are completely transferred but are different enough that unequal sharing occurs






48. The total energy of the universe is constant - all systems tend towards minimum energy






49. Oxidation # of free elements






50. ... compounds are most conductive