C3 Analysis and Synthesis Quiz

1. How do we test for halide ions?

  • Perform a flame test.
  • Add dilute nitric acid followed by silver nitrate solution and see if a precipitate forms.
  • Add dilute hydrochloric acid followed by barium chloride to see if a white precipitate forms.
  • Add dilute sodium hydroxide solution to see if a precipitate forms.
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2. When a reversible reaction is at equilibrium, how does the rate of the forward reaction compare with the rate of the reverse reaction?

  • The forward reaction and and reverse reaction occur simultaneously at the same rate.
  • It depends on the reaction conditions.
  • The forward reaction occurs at a faster rate than the reverse reaction.
  • The reverse reaction occurs at a faster rate than the forward reaction.

3. Which of the following is correct for all of the named precipitate reactions between sodium hydroxide and the metals?

  • Aluminium = silver, Magnesium = white, Copper (II) = blue, Iron (II) = red, Iron (III) = brown
  • Aluminium = white, Magnesium = white, Copper (II) = green, Iron (II) = green, Iron (III) = brown
  • Aluminium = white, Magnesium = white, Copper (II) = blue, Iron (II) = green, Iron (III) = brown
  • Aluminium = white, Magnesium = white, Copper (II) = blue, Iron (II) = brown, Iron (III) = yellow

4. Which compound group reacts with dilute acid to form carbon dioxide?

  • Nitrates
  • Halides
  • Carbonates
  • Sulfates

5. Why is a burette used in titrations?

  • Being made of glass makes it a better tool to measure with.
  • It allows you to accurately and precisely determine volumes and dispense them in small volumes at a time.
  • It has a tap at the bottom.
  • It is easier to use.

Comments

JasmineTiger

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Very good though some of the questions i haven't covered.

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