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6. In paper chromatography, what is a chromatogram?

  • The pattern of spots produced
  • The equipment used
  • The graph made

7. The nucleus is what fraction of an atom?

  • 1/10,000
  • 1/2,000
  • 1/20,000

8. The atomic mass number divided by the formula mass of the whole compound, multiplied by 100% gives...

  • Percentage composition
  • Percentage yield
  • Theoretical yield

9. In thin layer chromatography, you use plates coated with...

  • An absorbent such as silica
  • A solvent such as glue
  • An absorbent such as thin paper

10. Does ammonium chloride decompose into two gases or two liquids when warmed?

  • Gases
  • Liquids

11. In gas chromatography, the time for the substance to pass through (read off the chromatogram) is the...

  • Retention time
  • Retention factor

12. Copper sulfate is what coloyr when heated and therefore dehydrated?

  • White
  • Blue

13. Protons and neutrons have equal mass.

  • True
  • False

14. By dividing the distance moved by the substance by the distance moved by the solvent, you get the...

  • Retention factor
  • Retention time

15. In the empirical formula, you divide the given mass by the atomic mass, and then divide what by the smallest answer?

  • Smallest answer
  • Atomic mass
  • Given mass