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a=Cu
b=H(NO3)
d=NO(?)


ACu BHNO3dNO class=

Răspuns :

1) 3Cu+8HNO₃=3Cu(NO₃)₂+2NO+4H₂O
2) 2H₂O₂=2H₂O+O₂
3) 2NO+O₂=2NO₂
4) 2H₂O+O₂+4NO₂=4HNO₃
5) HNO₃+NaOH=H₂O+NaNO₃
6) 2NaNO₃=2NaNO₂+O₂
7) Cu(NO₃)₂+2NaOH=Cu(OH)₂+2NaNO₃
8) Cu(OH)₂+4NH₃=[Cu(NH₃)₄](OH)₂