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






2. 2 or more covalently bonded atoms






3. Kinetic Energy of an individual particle formula






4. CO3²?






5. 109.5° - sp^3






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






7. A solution that resists a change in its pH






8. (organics) five carbons






9. The transfer of energy between two objects due to temperature difference






10. AX4E2






11. Happens at lines in phase change charts






12. Half-life equation






13. I¹?






14. The heat changed in a chemical reaction.






15. How fast or slow a reaction occurs - becomes slower as it reaches equilibrium






16. Anything occupying space and with mass






17. Metal oxide + H20 ->






18. Volume of gas @STP






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






20. 0°C and 1 atm






21. 101 -325 Pa






22. Increase Volume






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






24. Instrument used to measure the pressure of a not-atmospheric gas (open or closed system)






25. If anion ends in -ate - acid name ends in...






26. When more than one valid Lewis structure can be written for a particular molecule; represented by double-headed arrows






27. Color of K (flame test)






28. Energy required for melting to occur






29. Oxidation # of Ions






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






31. Atomic #






32. Mole Fraction






33. Ecell= E°cell -RT/nF x lnQ






34. Type of system in which the energy and mass may leave or enter






35. Coffee Cup Calorimeter






36. The reactant in the oxidizing reaction that forces the reduction reaction to occur






37. Delta H (AH) = ?






38. Non-Ideal Gas Conditions






39. Elements in groups 3-12






40. AX3E






41. 96 -485 C/mol e-






42. Ptotal=P1+P2+P3+...

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43. When gas expands ...






44. Spontaneous emission of radiation






45. To find activation energy use the...






46. States molecules at a given temp. vary in kinetic energy along a bell-curve of molecular velocities






47. Specific heat of water






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






49. Horizontals on the periodic table






50. Reverse rxn occurs when