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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. AX4E






2. Energy required for melting to occur






3. What is defined by you taken from the whole universe






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






5. Energy needed to vaporize a mole of a liquid






6. When gas expands ...






7. ?H when 1 mol of bonds is broken in the gaseous state






8. All forms of energy except for heat






9. These orbitals are perpendicular






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






11. (organics) six carbons






12. Group 1 - Ammonium - Nitrates - Acetates - Sulfates - Halides






13. The reactant that is being oxidized - brings about reduction






14. Carbonates - Hydroxides - Oxides - Phosphates - Sulfides






15. CrO4²?






16. Bond bond in which atoms aren't so different that electrons are completely transferred but are different enough that unequal sharing occurs






17. 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)






18. Mol/kg of solvent - used in calculating colligative properties






19. Substances w/ critical temperatures below 25°C






20. R in ideal gas law






21. Speed per molecule of gas






22. Ending for alcohols






23. Ecell= E°cell -RT/nF x lnQ






24. Where there are no electrons






25. Proton donors






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






27. =vM2/M1






28. Atoms with the same number of protons but a different number of neutrons






29. Mixing of gases






30. Work = ?






31. Amine prefix






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






33. If a system @equilibrium is stressed - the system will shift so as to reestablish equilibrium

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34. Experimental yield/theoretical yieldx100






35. ?T=k*m(solute)






36. 109.5° - sp^3






37. Spectrum of light when an electron drops to energy level n=2






38. ... compounds are most conductive






39. Idea Gas Law (actual rules)






40. The driving force for a spontaneous is an increase in entropy of the universe






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






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






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






44. Positive enthalpy - heat flows into system






45. [A]0/2k






46. In a given atom no two electrons can have the same set of four quantum numbers






47. Force acting over distance






48. Increase Volume






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






50. 1 sigma bond - 1 pi bond