Other questions in this quiz

2. Why does sodium iodide solution conduct electricity?

  • Sodium can react with water and water can conduct electricity
  • The atoms are able to carry an electric charge
  • Ions can move (in the solution)
  • The iodide is able to conduct electricity when it reacts with water

3. 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

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

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

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

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


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