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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. The weight exerted by a column of air or the pressure exerted by the Earth's atmosphere






2. Theoretical yield-experimental yield/theoretical yieldx100






3. Ending for alcohols






4. Mole Fraction






5. 1.Calculate moles of each atom in molecule 2.Divide each mole number by smallest mole number 3.If necessary - multiply every mole number to get a whole number 4.Moles of each atom is subscript in empirical formula






6. OH¹?






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






8. Bomb Calorimeter






9. 2+ charge






10. Carbonates - Hydroxides - Oxides - Phosphates - Sulfides






11. Phase change from solid to gas






12. F¹?






13. A measure of randomness or disorder






14. Studies the rate at which a chemical process occurs and sheds light on its reaction mechanism






15. Delta H (AH) = ?






16. x can be ignored when % ionization is <5%






17. Phase change from gas to solid






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






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






20. AX5






21. 0.00°C - 1 atm






22. AP doesn't deal with ...-order reaction - don't pick it!






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






24. Carboxylic acid ending






25. These orbitals are spherical






26. U(rms)=(3RT/M)^1/2






27. l=2






28. 6.022x10^23






29. When n=4 ->2 - color=






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






31. Chemical composition of dry ice






32. 1/[A] vs. time is a ...-order reaction






33. Arrhenius equation






34. Half-life equation






35. Thickness






36. For significant digits - leading zeros ____ significant






37. 180° - sp






38. Oxidation # of Hydrogen






39. If a change is imposed on a system at equilibrium - the position of the equilibrium will shift in a direction that tends to reduce that change

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40. Calculation from K to C






41. Increase Volume






42. 120° - sp^2






43. Mass reactants= mass products






44. Speed of Diffusion/Effusion formula






45. 760mmHg/Torr






46. Kinetic Energy per molecule






47. 0°C and 1 atm






48. The mixing of native atomic orbitals to form special orbitals for bonding






49. Horizontals on the periodic table






50. Group 1 metals