C2

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1. What does gas chromatography do to the mixture of solvents?

  • It helps chromate the solvents making the easier to use
  • It identifies what compound the solvent is made from
  • It separates them
  • It shows what gas is produced
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2. What information does the molecular ion peak give about the molecule?

  • Mass spectroscopy
  • Relative atomic mass
  • Molecular mass / Mr
  • Identity of substance

3. How does an hydrogen atom turn into an hydrogen ion?

  • Gains an electron
  • Loses an electron
  • It reacts with a metal
  • It reacts with nitrogen

4. Why do hydrogen ions move to the negative electrode?

  • Because they react with the sodium metal to produce a positive ions which is attracted to the negative electrode
  • Because they have positive ions and opposites attract
  • Because they have negative ions that are attracted to the negative electrode
  • Because hydrogen is a BOSS

5. Why does the catalyst work for a long time before it needs replacing?

  • It is not used up
  • It reacts with elements that are able to clean the catalyst
  • It takes long to get used up
  • A catalyst never needs replacing

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