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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. Similar to atomic orbitals - except between molecules






2. AX3E






3. H?+NH3?NH4






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






5. AX4E2






6. Temperature-pressure point after which gas can no longer form liquid






7. H + donor






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






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






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






11. Group 1 and heavier Group 2 bases






12. Mass percent






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






14. Ether prefix






15. For significant digits - trailing zeros _____ significant






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






17. Experimental yield/theoretical yieldx100






18. (organics) single-bonded compound






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






20. Atomic #






21. Average speed of gas






22. Elements which have unpaired electrons and highly affected by magnetic fields






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






24. Molality =






25. q rxn = ?






26. Color of Li (flame test)






27. 1 sigma bond - 1 pi bond






28. Occupies the space above and below a sigma bond






29. Weakest IMFs - found in all molecules






30. 120° - sp^2






31. AX4E






32. Energy needed to vaporize a mole of a liquid






33. When n=6 ->2 - color=






34. Heat required to raise the system 1°C






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






36. 90°&120° - dsp^3






37. 1 sigma bond






38. Ecell= E°cell -RT/nF x lnQ






39. When gas expands ...






40. Passage of gas through tiny orifice






41. 1 sigma bond - 2 pi bonds






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






43. Electron (symbol)






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






45. Molarity (M)






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






47. H+ Acceptor






48. 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)






49. Proton donors






50. Increase Pressure







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