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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. BrO3¹?






2. 120° - sp^2






3. Chemical composition of dry ice






4. Point where acid completely neutralizes base






5. If needed - indicate charge of metal(cation) by...






6. AX3E2






7. For significant digits - leading zeros ____ significant






8. (organics) eight carbons






9. q cal = ?






10. Osmotic pressure=MRT






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






12. Color of Li (flame test)






13. Gain of electrons - decrease in oxidation #






14. Energy required for melting to occur






15. 96 -485 C/mol e-






16. When two elements form a series of compounds - the ratios of the masses of the second element that combine with 1g of the first element can always be reduced to whole numbers






17. Polyatomic Ions (bonding)






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






19. A neutral molecule/ion having a lone e- pair that can be used to form a bond to a metal ion






20. Oxidation # of Ions






21. Theoretical yield-experimental yield/theoretical yieldx100






22. R in ideal gas law






23. HF+ OH??H2O






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

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25. Where there are no electrons






26. Thickness






27. The reactant that is being reduced - brings about oxidation






28. [A] vs. time is a ...-order reaction






29. Group 1 and heavier Group 2 bases






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






31. Ionizes to produce H+ ions






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






33. Delta H (AH) = ?






34. Carbon & hydrogen compounds






35. Amount of gravitational force exerted on an object






36. Reverse rxn occurs when






37. AX6






38. Group 2 metals






39. kf of water






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






41. Substances that form OH- when dissolved in water; proton acceptors






42. Organic reaction in which water breaks apart a molecule (splitting into two hydroxides)






43. Elements which have unpaired electrons and highly affected by magnetic fields






44. Solid to liquid






45. Donates a single H+ Ion (... other prefixes also)






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






47. Pairs of electrons localized on an atom






48. Measure of the change in enthalpy






49. The line running between the atoms






50. Measure of the average kinetic energy of all the particles in a substance