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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. Rate of Diffusion/Effusion formula






2. Mass percent






3. 1/[A] vs. time is a ...-order reaction






4. Color of Li (flame test)






5. All cations are soluble with sulfate EXCEPT






6. Involves quantum numbers






7. 90°&120° - dsp^3






8. 1.Calculate moles of each atom in molecule 2.Divide each mole number by smallest mole number 3.If necessary - multiply every mole number to get a whole number 4.Moles of each atom is subscript in empirical formula






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






10. Transition metals with ammonia - hydroxide - cyanide or thiocyanate form...






11. Energy required to break a bond






12. Energy required for liquid?gas






13. Polyatomic Ions (bonding)






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






15. C2H3O2¹?






16. l=1






17. NO3¹?






18. R in instances that pertain to energy






19. A monoatomic cation takes name from...






20. If Q>Ksp






21. Combined Gas Law Formula






22. 760 mmHg - 760 torr






23. All (though really not all - but for our purposes all) ________ compounds are NOT electrolytes






24. Where reduction occurs






25. In covalent bonds - prefixes are used to tell...






26. Kinetic Energy of an individual particle formula






27. MnO4¹?






28. Positive ion






29. Entropy in the universe is always...






30. Variable for type of orbital






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






32. Loss of electrons - increase in oxidation #






33. Connects the 2 half cells in a voltaic cell






34. Raising heat - adding catalyst - heighten concentration - bigger surface area






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






36. Mol/kg of solvent - used in calculating colligative properties






37. Color of Ca (flame test)






38. Determined by the formula h/m(in kg)v - (v=velocity)






39. Type of system in which the energy may escape - but the mass is conserved






40. AX6






41. % yield






42. r=k[A]






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






44. Increase Volume






45. kf of water






46. Heat required to raise the system 1°C






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






48. Tools NEEDED for dilution






49. Energy involved in gaining an electron to become a negative ion






50. l=3