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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. Substance that - when dissolved - is conductive






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






3. Energy required to break a bond






4. Significant Digits of Conversion Factors






5. Puts H? into solution






6. ?Hsoln=?H1+?H2+?H3+...






7. Freezing point depression formula






8. The minimum energy that molecules must possess for collisions to be effective - Ea






9. An element with several different forms - each with different properties (i.e. graphite & diamond)






10. Experimental yield/theoretical yieldx100






11. Significant Digits of counted things






12. Cr2O7²?






13. Organic w/ -O-






14. Resistance to flow






15. 0.00°C - 1 atm






16. For significant digits - leading zeros ____ significant






17. Change without heat transfer between the system and its surroundings






18. Consists of a complex ion - a transition metal with attached ligands - and counterions






19. % yield






20. C2O4²?






21. NH4¹?






22. Thickness






23. Speed of Diffusion/Effusion formula






24. Heat required to raise the system 1°C






25. A homogeneous mixture with 1 phase






26. K






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






28. ClO3²?






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






30. l=2






31. Calculation from K to C






32. Force that holds atoms together






33. Wavelength symbol






34. Organic reaction in which two functional groups come together - resulting in the release of water






35. NO2¹?






36. AX3E2






37. AX4E






38. H+ Acceptor






39. Ability of an atom in a molecule to attract shared electrons to itself






40. 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






41. 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






42. Combined Gas Law Formula






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






44. r=k






45. ?T=k*m(solute)






46. 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






47. 120° - sp^2






48. 1 sigma bond - 2 pi bonds






49. Ka=[products]^m/[reactants]^n






50. Pure metal or metal hydride + H20 ->