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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. Experimental yield/theoretical yieldx100






2. NO3¹?






3. Organic reaction in which water breaks apart a molecule (splitting into two hydroxides)






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

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5. Driving force of the electrons






6. ln[A]=-kt + ln[A]0






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






8. K=[C]^l[D]^m/[A]^j[B]^k; products/reactants; solids don't count






9. Average Kinetic Energy Formula






10. Substances w/ critical temperatures below 25°C






11. Increase Pressure






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






13. Mixing of gases






14. Phase change from solid to gas






15. When more than one valid Lewis structure can be written for a particular molecule; represented by double-headed arrows






16. R in ideal gas law






17. Molarity (M)






18. Point where acid completely neutralizes base






19. Group 2 metals






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






21. Lowers activation energy






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






23. Half cell in which reduction occurs






24. A device in which chemical energy is changed to electrical energy






25. Force per unit area






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






27. Bomb Calorimeter






28. Positive enthalpy - heat flows into system






29. 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)






30. Gas to solid






31. Osmotic pressure=MRT






32. Effusion of a gas is inversely proportional to the square root of the molar mass

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33. When gas expands ...






34. When n=5 ->2 - color=






35. Change without heat transfer between the system and its surroundings






36. AX3E






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






38. 760mmHg/Torr






39. 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






40. Faraday's constant






41. Osmotic pressure formula






42. Variable for energy of e- - goes from 1 -2 -3 on up






43. C2O4²?






44. H+ Acceptor






45. Change that occurs at constant temperature






46. Reverse rxn occurs when






47. AX3






48. Higher in energy than the atomic orbitals of which it is composed






49. Energy needed to break a bond






50. Involves quantum numbers