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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°C and 1 atm






2. When two elements form a series of compounds - the ratios of the masses of the second element that combine with 1g of the first element can always be reduced to whole numbers






3. Color of Ba (flame test)






4. ?T=k*m(solute)






5. For significant digits - trailing zeros _____ significant






6. In ideal gas law problem - when it says "atmospheric" ...






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






8. Boiling point elevation formula






9. Horizontals on the periodic table






10. (organics) seven carbons






11. Osmotic pressure=MRT






12. Dirrect Method Formula






13. Metal oxide + H20 ->






14. AX5E






15. Carbon & hydrogen compounds






16. The actual amount of product produced in an experiment






17. If needed - indicate charge of metal(cation) by...






18. The heat changed in a chemical reaction.






19. Unit of electrical potential; J/C






20. Transition metals with ammonia - hydroxide - cyanide or thiocyanate form...






21. Actual Yield/Theoretical Yield*100%






22. Instrument used to measure the pressure of a not-atmospheric gas (open or closed system)






23. The part of the universe one is focused upon (in thermodynamics)






24. SO3²?






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






26. 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)






27. q cal = ?






28. Ideal Gas Law Formula






29. Carboxylic acid ending






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






31. When gas compresses ...






32. ClO4¹?






33. R=






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






35. Amount of heat needed to change a system by 1°C






36. I=moles of particles/moles of solute dissolved

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37. Polyatomic Ions (bonding)






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






39. n+m (these are orders of reactants)






40. Increase Volume






41. Expresses how the concentrations depend on time






42. An element with several different forms - each with different properties (i.e. graphite & diamond)






43. Carbon - hydrogen - oxygen compounds






44. S²?






45. Aldehyde suffix






46. The total energy of the universe is constant - all systems tend towards minimum energy






47. E=mc^2






48. Only contains ions that change in reaction






49. (organics) triple-bonded compound






50. Within a sublevel - place one e? per orbital before pairing them

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