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The set up below was used to prepare dry hydrogen gas. Study it and answer the questions that follow.

sukchempp1q13

  1. Identify one mistake in the set-up above
  2. What is the role of Liquid Z?
  3. Using an equation give one chemical property of hydrogen gas

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  1.  The method of gas collection   
  2. Absorbs moisture/water from hydrogen gas
  3.    
    • Burns in oxygen to form water
    • 2H2 (g) + O2 (g) → 2 H2O(l)
    • Removes oxygen from metals lower in the reactivity series
    • H2 (g) + CuO(s)  →Cu (s) + H2O (l)
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