Final answer:
When copper metal reacts with concentrated trioxonitrate(V) acid, one product, Cu(NO3)2, is formed. Additionally, NO2 gas and water are also produced.
Step-by-step explanation:
When copper metal reacts with concentrated trioxonitrate(V) acid, the equation for the reaction is:
Cu (s) + 4HNO3 (aq) → Cu(NO3)2 (aq) + 2NO2 (g) + 2H2O (l)
In this reaction, one product, Cu(NO3)2, is formed in the aqueous phase. Additionally, two other products are formed: NO2 gas and water.