During the reaction of copper metal with concentrated hno3 one of the products of the reaction is a dense, toxic and red-brown gas. what is the formula of this gas?

QUESTION POSTED AT 28/05/2020 - 11:39 PM

Answered by admin AT 28/05/2020 - 11:39 PM

The reaction between HNO₃ and Cu is characterised by the reaction:
         Cu  +  4HNO₃  →  Cu(NO₃)₂  +  2NO₂  +  2H₂O

Now, the formula of the thick gas produced that is toxic, and red-brown is actually Nitrogen Dioxide (NO₂).

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