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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. 0.00°C - 1 atm






2. Matter can't be created nor destroyed






3. Electron pairs found in the space between the atoms






4. A monoatomic cation takes name from...






5. Henry's Law - solubility of gases is directly proportional to the partial pressure of the gas






6. Amine prefix






7. 120° - sp^2






8. 6.022x10^23






9. E?s fill the lowest energy orbital first - then work their way up






10. Mass/volume






11. In going from a particular set of reactants to a particular set of products - the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps

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12. Gain of electrons - decrease in oxidation #






13. Atomic #






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






15. Significant Digits of counted things






16. A solution that resists a change in pH - contains both a weak acid and its conjugate base






17. H?+NH3?NH4






18. Driving force of the electrons






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






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






21. 90° - d^2sp^3






22. Elements which have all electrons paired and relatively unaffected by magnetic fields






23. AX6






24. Boiling point - melting point - viscosity - vapor pressure - surface tension






25. (organics) double-bonded compound






26. 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






27. H+ Acceptor






28. Larger molecules which have higher mass and therefore electron density have stronger...






29. Faraday's constant






30. The rest of the universe (in thermodynamics)






31. pH=






32. The reactant in the reduction reaction that forces the oxidation reaction to occur






33. Theoretical yield-experimental yield/theoretical yieldx100






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






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






36. Rate of Diffusion/Effusion formula






37. Carbon & hydrogen compounds






38. % yield






39. A device used to measure Delta H






40. Heat capacity formula






41. Oxoacid solution (such as HSO4-) forms...






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






43. 760mmHg/Torr






44. 180° - sp






45. Variable for type of orbital






46. Puts OH? into solution






47. Molecules' tendency to stick to one another






48. Everything in the universe that is not defined by you as part of the system






49. Connects the 2 half cells in a voltaic cell






50. Molecules' tendency to stick to the container