Question

8)NH3->?->NO2->?->Cu(NO3)2->?->NO2->?->NaNO3->?->HNO2 9)Ca3N2->?->N2->?->NO2->?->NH3

Answer 1

Ответ:

Расставь коэффициенты самостоятельно))) Правда лень, да и некогда, я тебе реакции написал, тебе просто элементы посчитать и расставить коэффициенты)

Объяснение:

№8

1) NH₃ + O₂ = NO + H₂O

2) NO + O₂ = NO₂

3) NO₂ + H₂O = HNO₃ + HNO₂

4) HNO₃(конц.) + Cu = Cu(NO₃)₂ + NO₂ + H₂O

5) Cu(NO₃)₂ = CuO + NO₂ + O₂

6) NO₂ + KOH = KNO₃ + KNO₂ + H₂O

7) KNO₃ = KNO₂ + O₂

8) KNO₂ + HCl = KCl + HNO₂

№9

1) Ca₃N₂ + H₂O = Ca(OH)₂ + NH₃

2) NH₃ + O₂ = N₂ + H₂O

3) N₂ + O₂ = NO

4) NO + O₂ = NO₂

5) NO₂ =  N₂ + NO

6) N₂ + H₂ = NH₃

Answer 2

8. The chemical reactions involved in the transformation of NH3 to HNO2 are:

NH3 → NO2 → Cu(NO3)2 → NO2 → NaNO3 → HNO2

The specific chemical reactions involved are:

NH3 + O2 → NO + H2O 2NO + O2 → 2NO2 Cu(NO3)2 → CuO + 2NO2 + 1/2O2 3CuO + 2HNO3 → 3Cu(NO3)2 + H2O Cu(NO3)2 + 2NaOH → Cu(OH)2 + 2NaNO3 Cu(OH)2 + 2HNO2 → Cu(NO2)2 + 2H2O Cu(NO2)2 + 2NaOH → Cu(OH)2 + 2NaNO2 2HNO2 → N2O + H2O N2O + H2O → HNO2

So the overall reaction is:

NH3 + 3O2 + 6NaOH → 3NaNO2 + 3H2O

9. The chemical reactions involved in the transformation of Ca3N2 to NH3 and HNO2 are:

Ca3N2 → N2 → NO2 → NH3 → HNO2

The specific chemical reactions involved are:

Ca3N2 + 6H2O → 3Ca(OH)2 + 2NH3 2NH3 + 3O2 → 2NO + 3H2O 2NO + O2 → 2NO2 NO2 + H2O → HNO2 + HNO3 HNO3 + Ca(OH)2 → Ca(NO3)2 + 2H2O Ca(NO3)2 → CaO + 2NO2 + 1/2O2 CaO + H2O → Ca(OH)2

So the overall reaction is:

Ca3N2 + 6H2O + 3O2 → 3Ca(OH)2 + 2NO2 + 2H2O 2NO2 + 3H2O → 2HNO2 + HNO3 2NH3 + HNO3 → N2O + 2H2O N2O + H2O → HNO2