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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. Absorbs/takes in heat (positive value)






2. A device used to measure Delta H






3. Pure metal or metal hydride + H20 ->






4. (A) - C/s






5. AX4E2






6. R in ideal gas law






7. Transition metals with ammonia - hydroxide - cyanide or thiocyanate form...






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






9. Elements on staircase on periodic table






10. Speed of Diffusion/Effusion formula






11. NH4¹?






12. Negative enthalpy - heat flows into surroundings






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






14. U(rms)=(3RT/M)^1/2






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






16. Forward rxn occurs when






17. How to Find an Empirical Formula Given Percentages






18. Stronger IMF= lower... weaker IMF= higher...






19. The reactant that is being reduced - brings about oxidation






20. AX5






21. High-energy light






22. Mols A/ total mols - XA






23. Universal IMF for nonpolar molecules






24. Change without heat transfer between the system and its surroundings






25. 1/[A] vs. time is a ...-order reaction






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






27. HCl - HBr - HI - HNO3 - HClO4 - H2SO4






28. Substance that - when dissolved - is conductive






29. Energy needed to break a bond






30. Half cell in which reduction occurs






31. Mass/volume






32. This MUST be determined experimentally






33. Oxidation # of Halogens






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






35. Ptotal=P1+P2+P3+...

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36. Work = ?






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






38. Ketone suffix






39. AX4






40. Change that occurs at constant temperature






41. ?Hsoln=?H1+?H2+?H3+...






42. Molarity (M)






43. Symbol for the heat absorbed or lost molecularly (PER MOLE)






44. H + donor






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






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






47. Similar to atomic orbitals - except between molecules






48. Actual Yield/Theoretical Yield*100%






49. Color of Li (flame test)






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

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