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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. Vapor pressure lowering - boiling point elevation - freezing point depression - osmotic pressure






2. Oxidation # of Halogens






3. Absorbs/takes in heat (positive value)






4. Does the same as equilibrium expression - except it uses initial concentrations






5. A solution used in titrations whose concentration is known






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






7. 0°C and 1 atm






8. The total entropy is always increasing - all systems tend towards maximum entropy






9. Resistance to flow






10. 1 sigma bond - 2 pi bonds






11. Speed of Diffusion/Effusion formula






12. Compound in which there is a bond between a metal and a non-metal; when naming - pay attention to ionic charges on periodic table (may be reduced)






13. Instrument used to measure the pressure of atmospheric gas






14. As protons are added to the nucleus - electrons are similarly added






15. Generally insoluble anions (names)






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






17. Specific heat of water






18. C=2.9979*10^8 m/s






19. J/°Cmol or J/Kmol






20. Change in Energy (AE) = ? (in terms of work)






21. Energy needed to vaporize a mole of a liquid






22. Heat needed to change 1 g of substance to 1°C






23. For significant digits - leading zeros ____ significant






24. Amine prefix






25. ... compounds are most conductive






26. Describe various properties of one orbital






27. Force acting over distance






28. High-speed electrons






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






30. If Q>Ksp






31. (msubs) Can only be +1/2 or -1/2






32. Ending for alcohols






33. 1.Volume of individual particles can be assumed to be zero 2.The particles are in constant motion - which causes pressure 3.Particles exert no forces on each other 4.The average kinetic energy of the particles is directly affected by temperature(K)






34. A homogeneous mixture with 1 phase






35. 760 mmHg - 760 torr






36. Loss of electrons - increase in oxidation #






37. Temperature-pressure combination at which solid - liquid - and gas states appear






38. [A]0/2k






39. Molarity (M)






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






41. Assumes that a molecule is composed of atoms that are bound together by sharing pairs of electrons using the atomic orbitals of the bound atoms






42. Point where acid completely neutralizes base






43. r=k






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






45. AX4






46. When ____ significant digits - round answer to least decimal place






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






48. 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






49. AX6






50. Positive ion