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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. ClO3²?






2. 180° - sp






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






4. Mass #






5. Elements on staircase on periodic table






6. 760 mmHg - 760 torr






7. Electron pairs found in the space between the atoms






8. In ideal gas law problem - when it says "atmospheric" ...






9. Kinetic Energy per molecule






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






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






12. Universal IMF for nonpolar molecules






13. Elements in groups 3-12






14. (organics) three carbons






15. A device used to measure Delta H






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






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






18. Color of Cs (flame test)






19. Lowers activation energy






20. Point at which the titrated solution changes color






21. High-energy light






22. 1 sigma bond - 1 pi bond






23. Where there are no electrons






24. AX4E2






25. Substances w/ critical temperatures below 25°C






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






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






28. Dalton's Law of Partial Pressures (to find partial pressure formula)






29. 2 or more covalently bonded atoms






30. States molecules at a given temp. vary in kinetic energy along a bell-curve of molecular velocities






31. Metal oxide + H20 ->






32. Isotope






33. Two molecules with identical connectivity but different geometries






34. Mass/volume






35. Measure of the average kinetic energy of all the particles in a substance






36. R in instances that pertain to energy






37. .69/k






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






39. Osmotic pressure formula






40. Work = ?






41. Half cell in which reduction occurs






42. Compound in which there is a bond between two non-metals; when naming them you use the numerical prefixes (may NOT be reduced i.e. S2F4 may not become SF2)






43. Color of Li (flame test)






44. Volume of gas @STP






45. kb of water






46. # bonding e- - # antibonding e-/2






47. R in ideal gas law






48. 109.5° - sp^3






49. Average speed of gas






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