Lab Demo - A Penny Reacting with Nitric Acid (Chemical Change)
Channel: Professor Heath's Chemistry Channel
Date: 05/03/2012

Professor Heath and his lab students having fun in lab dissolving a penny in concentrated nitric acid. This reaction generates nitrogen dioxide (gas) and aqueous copper (II) nitrate (blue solution in beaker).

The following is the reaction equation
Cu (s) 4 H+(aq) + 2NO3-  ---- Cu2+ (aq) + 2 NO2 (g) + 2 H2O (l)