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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. Mass percent






2. Change that occurs at constant temperature






3. Nonmetal oxide + H2O ->






4. A monoatomic cation takes name from...






5. All forms of energy except for heat






6. How to Find an Empirical Formula Given Grams






7. Boiling point elevation formula






8. Molecules' tendency to stick to the container






9. Expresses how the concentrations depend on time






10. (organics) nine carbons






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






12. Lowers activation energy






13. J/°Cg or J/Kg






14. Organic w/ -NH2






15. Color of Sr (flame test)






16. In going from a particular set of reactants to a particular set of products - the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps

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17. F¹?






18. H + donor






19. Where oxidation occurs






20. AX5






21. These orbitals are perpendicular






22. Horizontals on the periodic table






23. R in instances that pertain to energy






24. AX3E2






25. Colors of Reaction when (MnO4 -) --> (Mn2+)






26. 2 or more covalently bonded atoms






27. Negative enthalpy - heat flows into surroundings






28. Type of system in which the energy may escape - but the mass is conserved






29. Calculation from K to C






30. Colors of Reaction when (Cr2O7 2-) --> (Cr 3+)






31. Planck's constant - used to calculate energy w/frequency






32. Connects the 2 half cells in a voltaic cell






33. Phase change from gas to solid






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






35. High-speed electrons






36. AX2 - AX2E3






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






38. Ending for alcohols






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






40. CN¹?






41. Solid to liquid






42. H?+NH3?NH4






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






44. Similar to atomic orbitals - except between molecules






45. Change in Energy = ? (in terms of constant pressure; for gasses)






46. Gain of electrons - decrease in oxidation #






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






48. Donates a single H+ Ion (... other prefixes also)






49. Elements which have all electrons paired and relatively unaffected by magnetic fields






50. Only contains ions that change in reaction