The set-up below was used to collect gas F, produced by the reaction between water and calcium metal

      

The set-up below was used to collect gas F, produced by the reaction between water and calcium metal
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(i) Name gas F.
(ii) At the end of the experiment, the solution in the beaker was found to be a weak base. Explain why the solution is a weak base.
iii) Give one laboratory use of the solution formed in a beaker

  

Answers


John
i) Hydrogen gas

ii) Calcium hydroxide (Ca(OH)2) formed is slightly soluble in water. Therefore only a few OH- are produced in solution.

iii) It is used for testing presence of Carbon (IV) oxide (CO2)
johnmulu answered the question on April 12, 2017 at 07:08


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