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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. Oxidation # of Oxygen






2. Substances w/ critical temperatures below 25°C






3. E?s fill the lowest energy orbital first - then work their way up






4. For significant digits - trailing zeros _____ significant






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






6. High-energy light






7. Universal IMF for nonpolar molecules






8. Metal oxide + H20 ->






9. (# of lone pair e-)+1/2(# of shared e-)






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






11. This MUST be determined experimentally






12. In ideal gas law problem - when it says "atmospheric" ...






13. Force per unit area






14. Carbon - hydrogen - oxygen compounds






15. Symbol for Total Heat absorbed or released






16. The energy required to raise 1 g of substance 1 degree C






17. Mass #






18. E=mc^2






19. Expresses how the concentrations depend on time






20. Point at which liquid?gas occurs






21. Assumes that a molecule is composed of atoms that are bound together by sharing pairs of electrons using the atomic orbitals of the bound atoms






22. AP doesn't deal with ...-order reaction - don't pick it!






23. PO4³?






24. Average Kinetic Energy Formula






25. Organic w/ -OH group






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






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






28. When gas expands ...






29. Ptotal=Pa+Pb+Pc....

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30. A single substance that may be an acid or a base (i.e. water)






31. r=k[A]






32. These orbitals are spherical






33. Raising heat - adding catalyst - heighten concentration - bigger surface area






34. q H2O = ?






35. Ending for alcohols






36. Half cell in which oxidation occurs






37. Gas to liquid






38. Color of Na (flame test)






39. Ester suffix






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






41. Atomic #






42. Group 2 metals






43. Energy needed to vaporize a mole of a liquid






44. Cation first - anion second






45. All (though really not all - but for our purposes all) ________ compounds are NOT electrolytes






46. Coffee Cup Calorimeter






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






48. Entropy in the universe is always...






49. These orbitals are diagonal






50. 101 -325 Pa