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ICSE Class 10 Chemistry 2014 Paper

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Write balanced equations for the following :
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Question : 25 of 88
Marks: +1, -0
Action of dilute hydrochloric acid on sodium sulphide.
Solution:  
  Na2S+2HCl→2NaCl+H2S↑\;\mathrm{Na}_2\mathrm{S} + 2\mathrm{HCl} \rightarrow 2\mathrm{NaCl} + \mathrm{H}_2\mathrm{S} \uparrow
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