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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. Speed of Diffusion/Effusion formula






2. Point at which vapor pressure=air pressure above






3. Composition Formula






4. r=k[A]






5. Carboxylic acid ending






6. AH of formation for a substance in its stablest form (how it is found in nature)






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






8. (organics) double-bonded compound






9. Rate of Diffusion/Effusion formula






10. Calculation from K to C






11. If heat capacity isn't mentioned - you can assume that q of cal is = ?






12. S²?






13. Studies the rate at which a chemical process occurs and sheds light on its reaction mechanism






14. When more than one valid Lewis structure can be written for a particular molecule; represented by double-headed arrows






15. Planck's constant - used to calculate energy w/frequency






16. Ketone suffix






17. Involves quantum numbers






18. Organic w/ -OH group






19. If a change is imposed on a system at equilibrium - the position of the equilibrium will shift in a direction that tends to reduce that change

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20. Uses a spontaneous redox rxn to generate electrical energy - consists of 2 half cells






21. 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






22. Henry's Law - solubility of gases is directly proportional to the partial pressure of the gas






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






24. Molarity (M)






25. Happens at lines in phase change charts






26. Has values from 0 to (n-1); tells shape of atomic orbitals






27. Arrhenius equation






28. Aldehyde suffix






29. 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






30. States molecules at a given temp. vary in kinetic energy along a bell-curve of molecular velocities






31. Heat capacity formula






32. Reactant that's completely used up in a chemical reaction






33. Energy needed to vaporize a mole of a liquid






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






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

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






37. Color of Na (flame test)






38. Oxidation # of Halogens






39. Carbon & hydrogen compounds






40. Color of Sr (flame test)






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






42. J/°Cg or J/Kg






43. Symbol for Enthalpy






44. Larger molecules which have higher mass and therefore electron density have stronger...






45. If Q>Ksp






46. H+ Acceptor






47. J/°Cmol or J/Kmol






48. When _____ significant digits - round answer to least significant digit






49. PV=nRT






50. Mols A/ total mols - XA