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The set up below was used to collect gas Z produced by the reaction between water and calcium metal.
set up on water and calcium metal reaction

  1. Give a chemical test for gas Z. 
  2. Write the equation of the reaction between the calcium metal and water.

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  1. It burns with a pop sound. 
  2. Ca(s) + 2H2O(l) → Ca(OH)2(aq) + H2(g) 
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