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






2. The total energy of the universe is constant - all systems tend towards minimum energy






3. Group 1 and heavier Group 2 bases






4. Elements which have unpaired electrons and highly affected by magnetic fields






5. Has values 1 -2 -3 -...; tells energy levels






6. Cation first - anion second






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






8. Significant Digits of counted things






9. Consists of a complex ion - a transition metal with attached ligands - and counterions






10. Energy can't be created nor destroyed






11. When n=4 ->2 - color=






12. Instrument used to measure the pressure of atmospheric gas






13. For colligative properties for electrolytes - the # of mols of ions/ mols of solute

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14. Mol/L - concentration of a solution






15. Formula used when diluting stock solution (to find amount of water or stock needed)






16. Reactant which doesn't get used up completely in a chemical reaction






17. I=moles of particles/moles of solute dissolved

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18. Group 2 metals






19. Color of Ba (flame test)






20. q cal = ?






21. Significant Digits of Conversion Factors






22. 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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23. Forward rxn occurs when






24. Peak of energy diagram






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






26. Elements on staircase on periodic table






27. (organics) five carbons






28. Connects the 2 half cells in a voltaic cell






29. When n=3 ->2 - color=






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






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






32. Anything occupying space and with mass






33. (organics) double-bonded compound






34. Generally insoluble anions (names)






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






36. An equilibrium expression






37. AX5






38. Hydroxides are soluble or insoluble?






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






40. AX3E






41. Boiling point elevation formula






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






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






44. (organics) two carbons






45. High-speed electrons






46. Cl¹?






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






48. Polyatomic Ions (bonding)






49. C2O4²?






50. R=