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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. Electrons in a hydrogen atom move around the nucleus only in circular orbits






2. CN¹?






3. The line running between the atoms






4. Oxidation # of Polyatomic Ions






5. Point at which solid?liquid occurs






6. High-energy light






7. The reactant in the oxidizing reaction that forces the reduction reaction to occur






8. Heat capacity formula






9. A molecule having a center of positive charge and a center of negative charge






10. Mass percent






11. 101 -325 Pa






12. Elements which have all electrons paired and relatively unaffected by magnetic fields






13. Similar to atomic orbitals - except between molecules






14. Gas to solid






15. 1 sigma bond - 1 pi bond






16. Atoms combine in fixed whole # ratios






17. ClO4¹?






18. A monoatomic cation takes name from...






19. We cannot simultaneously determine an atom's exact path or location






20. (organics) four carbons






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






22. (N) number of equivalents per liter of solution






23. Oxoacid solution (such as HSO4-) forms...






24. AX4E






25. Point where acid completely neutralizes base






26. STP






27. Variable for type of orbital






28. Substance being dissolved in a solution (lower [ ])






29. Pairs of electrons localized on an atom






30. Gain of electrons - decrease in oxidation #






31. Elements in groups 3-12






32. Molality =






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






34. Mass/volume






35. The mixing of native atomic orbitals to form special orbitals for bonding






36. If anion ends in -ide - acid name ends in






37. When gas compresses ...






38. Boiling point elevation formula






39. A solution that resists a change in its pH






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






41. Passage of gas through tiny orifice






42. (organics) six carbons






43. Phase change from solid to gas






44. Amount of product produced when limiting reactant is used up






45. An equilibrium expression






46. Positive enthalpy - heat flows into system






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






48. Absorbs/takes in heat (positive value)






49. CO3²?






50. Ketone suffix