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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. The energy required to raise 1 g of substance 1 degree C






2. ClO3²?






3. 1/[A]=kt + 1/[A]0






4. Arrhenius equation






5. The weight exerted by a column of air or the pressure exerted by the Earth's atmosphere






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






7. Vapor pressure lowering - boiling point elevation - freezing point depression - osmotic pressure






8. For significant digits - leading zeros ____ significant






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






10. All forms of energy except for heat






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. The lowest energy configuration for an atom is the one having the max number of unpaired electrons allowed by the Pauli principle in a set of degenerate orbitals

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13. Aldehyde suffix






14. Change in Energy (AE) = ? (in terms of work)






15. Speed of light - C






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






17. 6.022x10^23






18. Universal IMF for nonpolar molecules






19. Compound in which there is a bond between two non-metals; when naming them you use the numerical prefixes (may NOT be reduced i.e. S2F4 may not become SF2)






20. In a titration - the point where the indicator changes (just after moles of solid are equal to moles of base)






21. Isotope






22. The weighted average of all the isotopes that an atom can have (in g/mol)






23. The part of the universe one is focused upon (in thermodynamics)






24. Equation to find Ea from reaction rate constants at two different temperatures






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






26. Instrument used to measure the pressure of a not-atmospheric gas (open or closed system)






27. Function in which it doesn't matter HOW the changes take place - only that they do; you can use to formula Final - Initial ( i.e. energy - pressure - volume - temperature - sort of moles)






28. Force acting over distance






29. Proton (symbol)






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






31. negative ion






32. CrO4²?






33. H+ Acceptor






34. Neutralization Reaction (general format) (net ionic of which is always (H+) + (OH-) --> (H2O))






35. Forward rxn occurs when






36. H?+NH3?NH4






37. AX4E






38. Mass #






39. Elements in groups 3-12






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






41. Energy required for liquid?gas






42. Amount of gravitational force exerted on an object






43. Positive ion






44. If anion ends in -ite - acid name ends in...






45. Liquid to gas






46. Change that occurs at constant temperature






47. J/°Cg or J/Kg






48. 0°C and 1 atm






49. Substance in which something is dissolved in a solution (higher [ ])






50. AX3E2