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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. Where reduction occurs






2. n+m (these are orders of reactants)






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






4. Cation first - anion second






5. Carbon & hydrogen compounds






6. Describe various properties of one orbital






7. frequency symbol






8. Ether prefix






9. Mol/L - concentration of a solution






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






11. BrO3¹?






12. Elements on staircase on periodic table






13. Cr2O7²?






14. 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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15. The reactant that is being reduced - brings about oxidation






16. All cations are soluble with bromide - chloride and iodide EXCEPT






17. S²?






18. If a system @equilibrium is stressed - the system will shift so as to reestablish equilibrium

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19. A neutral molecule/ion having a lone e- pair that can be used to form a bond to a metal ion






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






21. 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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22. Has values 1 -2 -3 -...; tells energy levels






23. Boiling point elevation formula






24. Kinetic Energy of an individual particle formula






25. Kinetic Energy is proportional to ______






26. Expresses how the concentrations depend on time






27. Weakest IMFs - found in all molecules






28. (# of valence e- on free atom) - (# of valence e- assigned to atom in molecule)






29. An equilibrium expression






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






31. Group 1 - Ammonium - Nitrates - Acetates - Sulfates - Halides






32. Volume of gas @STP






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






34. Spectrum of light when an electron drops to energy level n=2






35. Solution used in titration






36. (organics) three carbons






37. Boltzmann constant - used in calculating speed of gas per molecule






38. OH¹?






39. Atomic #






40. Mol of solute/kg of solvent






41. Nonmetal oxide + H2O ->






42. Hydroxides are soluble or insoluble?






43. Isotope






44. These orbitals are diagonal






45. Type of system in which nothing is transfered (no mass or energy); ideal






46. Type of system in which the energy and mass may leave or enter






47. Chemical composition of dry ice






48. Mole Fraction






49. Speed of Diffusion/Effusion formula






50. Color of Ca (flame test)