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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. Substances that form H+ when dissolved in water; proton donors






2. AX6






3. CN¹?






4. These orbitals are diagonal






5. Mass reactants= mass products






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






7. E=mc^2






8. Absorbs/takes in heat (positive value)






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






10. Temperature-pressure point after which gas can no longer form liquid






11. R=






12. AX4E2






13. AX2 - AX2E3






14. Solution used in titration






15. (organics) double-bonded compound






16. All _________ compounds are electrolytes






17. These orbitals are perpendicular






18. Electron (symbol)






19. For colligative properties for electrolytes - the # of mols of ions/ mols of solute

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20. Molecules' tendency to stick to the container






21. How to Find an Empirical Formula Given Grams






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






23. Elements on staircase on periodic table






24. These orbitals are spherical






25. K






26. Amount of gravitational force exerted on an object






27. 760mmHg/Torr






28. 1.Volume of individual particles can be assumed to be zero 2.The particles are in constant motion - which causes pressure 3.Particles exert no forces on each other 4.The average kinetic energy of the particles is directly affected by temperature(K)






29. Average Kinetic Energy Formula






30. Lowers activation energy






31. Only contains ions that change in reaction






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






33. Boiling point elevation formula






34. For significant digits - trailing zeros _____ significant






35. Group 1 and heavier Group 2 bases






36. Work = ?






37. Color of Ca (flame test)






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






39. A device in which chemical energy is changed to electrical energy






40. Substances above the critical temperature and pressure in which the pressure is so high that density and flowing ability of a "gas" resembles that of a liquid






41. BrO3¹?






42. Ketone suffix






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






44. AX3E2






45. A solid or gas that can be formed when 2 or more aqueous reactants come together






46. In a given atom no two electrons can have the same set of four quantum numbers






47. If K>1 - then Gº<0 and reaction will be...at chemical equilibrium






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






49. Instrument used to measure the pressure of atmospheric gas






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







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