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






2. 90°&120° - dsp^3






3. Electron (symbol)






4. AX2E - AX2E2






5. A solution used in titrations whose concentration is known






6. AX5E






7. Osmotic pressure=MRT






8. Carboxylic acid ending






9. ln[A] vs. time is a ...-order reaction






10. 0°C and 1 atm






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






12. Each orbital can hold two e?s each w/ opposite spins






13. Cation first - anion second






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






15. q H2O = ?






16. The rest of the universe (in thermodynamics)






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






18. Like dissolves...






19. Amount of gravitational force exerted on an object






20. HCl - HBr - HI - HNO3 - HClO4 - H2SO4






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






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






23. Organic w/ -OH group






24. If Q<Ksp






25. Atomic #






26. Occupies the space above and below a sigma bond






27. Calculation from K to C






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






29. Ether prefix






30. A single substance that may be an acid or a base (i.e. water)






31. Pairs of electrons localized on an atom






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






33. Releases/gives off heat (negative value)






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






35. Unusually strong dipole forces found when H is bonded to N - O - or F






36. Moles of solute/volume of soln(L)






37. OH¹?






38. A device used to measure Delta H






39. C2O4²?






40. Substances that form H+ when dissolved in water; proton donors






41. The transfer of energy between two objects due to temperature difference






42. Heat capacity formula






43. Isotope






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






45. Color of Ba (flame test)






46. l=0






47. Mass reactants= mass products






48. Absorbs/takes in heat (positive value)






49. Horizontals on the periodic table






50. Oxidation # of free elements