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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. AX2 - AX2E3






2. Happens at lines in phase change charts






3. Variable for energy of e- - goes from 1 -2 -3 on up






4. A molecule having a center of positive charge and a center of negative charge






5. O²?






6. (organics) double-bonded compound






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






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






9. Change in Energy (AE) = ? (in terms of work)






10. Atoms combine in fixed whole # ratios






11. Substances that form H+ when dissolved in water; proton donors






12. If Q>Ksp






13. Coffee Cup Calorimeter






14. Anything occupying space and with mass






15. In a given atom no two electrons can have the same set of four quantum numbers






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






17. Raoult's Law - relations between vapor pressure and concentrations






18. Compound in which there is a bond between two non-metals; when naming them you use the numerical prefixes (may NOT be reduced i.e. S2F4 may not become SF2)






19. Peak of energy diagram






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






21. Ideal Gas Law Formula






22. The weighted average of all the isotopes that an atom can have (in g/mol)






23. 120° - sp^2






24. 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)






25. 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






26. Point where acid completely neutralizes base






27. H?+OH??H2O






28. Increase Volume






29. How to Find an Empirical Formula Given Percentages






30. Boiling point elevation formula






31. =vM2/M1






32. Puts H? into solution






33. Two molecules with identical connectivity but different geometries






34. Melting






35. Pure metal or metal hydride + H20 ->






36. Mass/volume






37. Similar to atomic orbitals - except between molecules






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






39. Liquid to gas






40. Volume of gas @STP






41. (# of valence e- on free atom) - (# of valence e- assigned to atom in molecule)






42. (N) number of equivalents per liter of solution






43. Substance in which something is dissolved in a solution (higher [ ])






44. l=3






45. For significant digits - trailing zeros _____ significant






46. Energy needed to vaporize a mole of a liquid






47. OH¹?






48. 1 sigma bond






49. [A] vs. time is a ...-order reaction






50. Aldehyde suffix