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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. Pure metal or metal hydride + H20 ->






2. Elements in groups 3-12






3. Reverse rxn occurs when






4. Liquid to solid






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






6. Carbon - hydrogen - oxygen compounds






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






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






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






10. Atomic #






11. NO3¹?






12. #NAME?






13. q H2O = ?






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






15. Mass/volume






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






17. Passage of gas through tiny orifice






18. Energy needed to vaporize a mole of a liquid






19. All cations are soluble with bromide - chloride and iodide EXCEPT






20. 1/[A] vs. time is a ...-order reaction






21. If a system @equilibrium is stressed - the system will shift so as to reestablish equilibrium

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22. Solid to liquid






23. The intermolecular attractions resulting from the constant motion of electrons and the creation of instantaneous dipoles






24. The chemical formed when a base accepts a proton






25. 0.00°C - 1 atm






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






27. Non-Ideal Gas Conditions






28. Color of K (flame test)






29. Thickness






30. Oxidation # of free elements






31. The reactant in the reduction reaction that forces the oxidation reaction to occur






32. Oxidation # of Hydrogen






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






34. Where oxidation occurs






35. Faraday's constant






36. (organics) three carbons






37. Does the same as equilibrium expression - except it uses initial concentrations






38. Effusion of a gas is inversely proportional to the square root of the molar mass

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39. These orbitals are spherical






40. Carbonates - Hydroxides - Oxides - Phosphates - Sulfides






41. Energy required to break a bond






42. BrO3¹?






43. (organics) seven carbons






44. Heat needed to change 1 g of substance to 1°C






45. Moles of solute/volume of soln(L)






46. 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






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






48. Boiling point - melting point - viscosity - vapor pressure - surface tension






49. Half cell in which reduction occurs






50. Phase change from gas to solid