Test your basic knowledge |

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. O²?






2. NO3¹?






3. Elements in groups 3-12






4. Weakest IMFs - found in all molecules






5. Color of Li (flame test)






6. Higher in energy than the atomic orbitals of which it is composed






7. R=






8. Specific heat of water






9. Average speed of gas






10. negative ion






11. These orbitals are spherical






12. Has values from 0 to (n-1); tells shape of atomic orbitals






13. When n=3 ->2 - color=






14. Calculation from K to C






15. Solution used in titration






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






17. AX4E






18. The likelihood that a rxn will occur "by itself"






19. C2O4²?






20. Variable for type of orbital






21. Formula used when diluting stock solution (to find amount of water or stock needed)






22. IMF that exists in polar molecules






23. Speed of Diffusion/Effusion formula






24. For significant digits - trailing zeros _____ significant






25. Symbol for Enthalpy






26. 1 sigma bond - 1 pi bond






27. 6.022x10^23






28. The mixing of native atomic orbitals to form special orbitals for bonding






29. Carbon - hydrogen - oxygen compounds






30. l=0






31. A homogeneous mixture with 1 phase






32. q cal = ?






33. The part of the universe one is focused upon (in thermodynamics)






34. Cr2O7²?






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






36. K






37. When ____ significant digits - round answer to least decimal place






38. The measurement of heat changes






39. The total energy of the universe is constant - all systems tend towards minimum energy






40. When gas expands ...






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






42. Actual Yield/Theoretical Yield*100%






43. These orbitals are perpendicular






44. Heat required to raise the system 1°C






45. Mols A/ total mols - XA






46. A measure of resistance of an object to a change in its state of motion






47. Point at which liquid?gas occurs






48. A weak acid that changes color at or near the equivalence point






49. Ionizes to produce OH- Ions






50. Tools NEEDED for dilution