Question

Cu + HNO3 = Cu(NO₃)2 + NO + H2O
Do it by ion electron method in such a way that I can understand​

Answer 1

Explanation:

Cu+HNO3→Cu(NO3)2+NO+H2O

Ionic equation,

Cu+H++NO3−→Cu2++NO+H2O

1st step: Splitting into two half reactions,

(Oxidationhalfreaction)Cu→Cu2+; (Reductionhalfreaction)NO3−+H+→NO+H2O

2nd step: Adding H+ ions to the side deficient in hydrogen,

Cu→Cu2+;NO3−+4H+→NO+2HO

3rd step: Adding electrons to the side deficient in electrons,

Cu→Cu2++2e; NO3−+4H++3e→NO+2H2O

4th step: Balancing electrons in both half reactions,

3Cu→3Cu2++6e 2NO3−+8H++6e→2NO+4H2O

5th step: Adding both the half reactions,

3Cu+2NO3−+8H+→3Cu2++2NO+4H2O

Converting it into molecular form

3Cu+2NO3−+8H++6NO3−→3Cu2++6NO3−+2NO+4H2O

or

3Cu+8HNO3→3Cu(NO3)2+2NO+4H2O.