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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. Universal IMF for nonpolar molecules






2. Force acting over distance






3. Energy required to break a bond






4. Occupies the space above and below a sigma bond






5. R in instances that pertain to energy






6. Osmotic pressure formula






7. R=






8. A solution used in titrations whose concentration is known






9. AX6






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






11. 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






12. Where there are no electrons






13. Color of Ba (flame test)






14. Rate of Diffusion/Effusion formula






15. Polyatomic Ions (bonding)






16. AX4E2






17. PO4³?






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






19. J/°Cmol or J/Kmol






20. Color of Li (flame test)






21. Atoms combine in fixed whole # ratios






22. #NAME?






23. Group 1 metals






24. Mass reactants= mass products






25. 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






26. Half cell in which oxidation occurs






27. Organic w/ -NH2






28. As protons are added to the nucleus - electrons are similarly added






29. Has values from -l to l - including zero; tells orientation of the orbital relative to other orbitals






30. (organics) seven carbons






31. Half-life equation






32. AX4E






33. Mass #






34. ClO2¹?






35. H?+NH3?NH4






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






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






38. Mass/volume






39. Symbol for Enthalpy






40. In a titration - the point where moles of acid are equal to moles of base (just before the indicator changes color)






41. Unusually strong dipole forces found when H is bonded to N - O - or F






42. SI unit of energy; Kg*m^2/s^2






43. F¹?






44. 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






45. How to Find an Empirical Formula Given Percentages






46. Reactant which doesn't get used up completely in a chemical reaction






47. A monoatomic cation takes name from...






48. Energy needed to break a bond






49. Oxidation # of Compounds






50. Organic w/ -OH group