Question

N2-NH3-NO-NO2-HNO3-Cu(NO3)2

Answer 1

N₂→NH₃→NO→NO₂→HNO₃→Cu(NO₃)₂
N₂ + 3H₂ = 2NH₃
4NH₃ + 5O₂ = 4NO + 6H₂O
2NO + O₂= 2NO₂
4NO₂ + O₂ +2 H₂O = 4HNO₃
2HNO₃ + Ca(OH)₂=Cu(NO₃)₂ + 2H₂O