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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. Anything occupying space and with mass






2. Ionizes to produce H+ ions






3. (organics) triple-bonded compound






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






5. When n=4 ->2 - color=






6. Polyatomic Ions (bonding)






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






8. If heat capacity isn't mentioned - you can assume that q of cal is = ?






9. Half cell in which reduction occurs






10. Where oxidation occurs






11. Involves quantum numbers






12. 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






13. All _________ compounds are electrolytes






14. Describe various properties of one orbital






15. Thickness






16. A solution that resists a change in pH - contains both a weak acid and its conjugate base






17. STP






18. Type of system in which nothing is transfered (no mass or energy); ideal






19. The entropy of a pure perfectly formed crystal @0K is 0






20. Temperature-pressure combination at which solid - liquid - and gas states appear






21. PV=nRT






22. K=[C]^l[D]^m/[A]^j[B]^k; products/reactants; solids don't count






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






24. 120° - sp^2






25. AX5






26. Oxidation # of Halogens






27. Dirrect Method Formula






28. Oxidation # of Ions






29. C2H3O2¹?






30. Compound in which there is a bond between a metal and a non-metal; when naming - pay attention to ionic charges on periodic table (may be reduced)






31. Diatomic Molecules






32. Measure of the change in enthalpy






33. The heat changed in a chemical reaction.






34. Kinetic Energy is proportional to ______






35. Spontaneous emission of radiation






36. Energy needed to break a bond






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






38. We cannot simultaneously determine an atom's exact path or location






39. Ability of an atom in a molecule to attract shared electrons to itself






40. Has values 1 -2 -3 -...; tells energy levels






41. An equilibrium expression






42. Pure metal or metal hydride + H20 ->






43. Mols A/ total mols - XA






44. (msubs) Can only be +1/2 or -1/2






45. Electron pairs found in the space between the atoms






46. 2 or more covalently bonded atoms






47. q H2O = ?






48. Ionizes to produce OH- Ions






49. AX2E - AX2E2






50. A solution that resists a change in its pH