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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. Ester suffix






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






3. Mol/kg of solvent - used in calculating colligative properties






4. 1.Calculate moles of each atom in molecule 2.Divide each mole number by smallest mole number 3.If necessary - multiply every mole number to get a whole number 4.Moles of each atom is subscript in empirical formula






5. AX4E2






6. Henry's Law - solubility of gases is directly proportional to the partial pressure of the gas






7. HF+ OH??H2O






8. Stronger IMF= lower... weaker IMF= higher...






9. If a change is imposed on a system at equilibrium - the position of the equilibrium will shift in a direction that tends to reduce that change

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10. kf of water






11. x can be ignored when % ionization is <5%






12. All cations are soluble with sulfate EXCEPT






13. PO4³?






14. Resistance to flow






15. A given compound always has exactly the same proportion of elements by mass






16. Connects the 2 half cells in a voltaic cell






17. Osmotic pressure=MRT






18. (organics) two carbons






19. Puts OH? into solution






20. Kinetic Energy is proportional to ______






21. Loss of electrons - increase in oxidation #






22. Molecules' tendency to stick to the container






23. When n=5 ->2 - color=






24. Atoms combine in fixed whole # ratios






25. Reverse rxn occurs when






26. Oxidation # of Compounds






27. Bond bond in which atoms aren't so different that electrons are completely transferred but are different enough that unequal sharing occurs






28. OH¹?






29. Ionizes to produce OH- Ions






30. Electron pairs found in the space between the atoms






31. SO4²?






32. Weakest IMFs - found in all molecules






33. q cal = ?






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






35. Specific heat of water






36. Composition Formula






37. Amount of heat needed to change a system by 1°C






38. Force acting over distance






39. #NAME?






40. (N) number of equivalents per liter of solution






41. Forward rxn occurs when






42. Rate of Diffusion/Effusion formula






43. How to Balance a Redox Equation






44. AX4






45. r=k[A]^2






46. 0.00°C - 1 atm






47. frequency symbol






48. Compound in which there is a bond between two non-metals; when naming them you use the numerical prefixes (may NOT be reduced i.e. S2F4 may not become SF2)






49. q H2O = ?






50. (organics) one carbon