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






2. Gas to liquid






3. Proton acceptors - must have an unshared pair of e?s






4. 6.022x10^23






5. Mass/volume






6. Energy needed to break a bond






7. Energy required to break a bond






8. Substances above the critical temperature and pressure in which the pressure is so high that density and flowing ability of a "gas" resembles that of a liquid






9. ?T=k*m(solute)






10. K






11. Larger molecules which have higher mass and therefore electron density have stronger...






12. Ionizes to produce H+ ions






13. neutron (symbol)






14. AX4E2






15. % yield






16. Solid to liquid






17. Osmotic pressure formula






18. Cation first - anion second






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






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






21. Function in which it doesn't matter HOW the changes take place - only that they do; you can use to formula Final - Initial ( i.e. energy - pressure - volume - temperature - sort of moles)






22. Kinetic Energy per mol






23. (organics) triple-bonded compound






24. 90°&120° - dsp^3






25. Substance that - when dissolved - is conductive






26. #NAME?






27. Mol/L - concentration of a solution






28. Point at which solid?liquid occurs






29. An equilibrium expression






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






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






32. Oxidation # of Compounds






33. Positive ion






34. C2O4²?






35. Work = ?






36. Cr2O7²?






37. 120° - sp^2






38. 2+ charge






39. Oxidation # of free elements






40. Horizontals on the periodic table






41. Unit of electrical potential; J/C






42. negative ion






43. A measure of randomness or disorder






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






45. OH¹?






46. Significant Digits of counted things






47. Mol of solute/kg of solvent






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






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






50. The minimum energy that molecules must possess for collisions to be effective - Ea