Al + HNO3 = Al(NO3)3 + NxOy H2O
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1.Al\(\rightarrow\)Al+3 +3e_______________.(5x-2y)
xN+5 +(5x-2y)e\(\rightarrow\)xN+\(\frac{2y}{x}\)______.3
\(\rightarrow\)(5x-2y)Al+(18x-6y)HNO3\(\rightarrow\)(5x-2y)Al(NO3)3+3NxOy+(9x-3y)H2O
2.M\(\rightarrow\)M+n +ne____.2
S+6 +2e\(\rightarrow\)S+4_____.n
\(\rightarrow\)2M+3nH2SO4\(\rightarrow\)2M(SO4)n+nSO2+3nH2O
3.M\(\rightarrow\)M+n +ne__________.(5x-2y)
xN+5 +(5x-2y)e\(\rightarrow\)xN+\(\frac{2y}{x}\) ____.n
\(\rightarrow\)(5x-2y)M+(6nx-2ny)HNO3\(\rightarrow\)(5x-2y)M(NO3)n+nNxOy+(3nx-ny)H2O
N+5 +3e\(\rightarrow\)N+2 __________.1
2N+5 +8e\(\rightarrow\)2N+1_________ .2
\(\rightarrow\)5N+5 +19e\(\rightarrow\)N+2 +4N+1______ .2
Zn\(\rightarrow\)Zn+2 +2e ____________ .19
\(\rightarrow\)19Zn+48HNO3\(\rightarrow\)19Zn(NO3)2+2NO+4N2O+24H2O
2N+5 +10e\(\rightarrow\)2N0 .2
2N+5+ 8e\(\rightarrow\)2N+1 .1
\(\rightarrow\)6N+5 +28e\(\rightarrow\)4N0 +2N+1 .3
Al\(\rightarrow\)Al+3 +3e _________.28
\(\rightarrow\)28Al+102HNO3\(\rightarrow\)28Al(NO3)3+6N2+3N2O+51H2O
2Fe+2 \(\rightarrow\)2Fe+3 +2e .5
Mn+7 +5e\(\rightarrow\)Mn+2 .2
\(\rightarrow\)10FeSO4+2KMnO4+2KHSO4\(\rightarrow\)5Fe2(SO4)3+2MnSO4+2K2SO4+H2O
4. (5x-2y)AL + (18x-6y)HNO3 -------> (5x-2y)AL(NO3)3 + 3NxOy +(9x-3y)H2O
5. 2M + 2nH2SO4--------> M2(SO4)n + nSO2 + 2nH2O
6. (5x-2y)M + (6nx-2ny)HNO3 -------->(5x-2y) M(NO3)n +n NxOy + (3nx-ny)H2O
7. 11Zn + 28HNO3 -------> 11Zn( NO3)2 + 2NO + 2N2O + 14H2O
8. 46AL + 168HNO3 -------;> 46AL( NO3)3 + 9N2 + 6N2O + 84H2O
9. 10FeSO4 + 2KMnO4 + 16KHSO4 ---> 5Fe2(SO4)3 +9 K2SO4 + 2MnSO4 + 8H2O.
Al->Al+3 +3e________________ .(5x-2y)
xN+5 +(5x-2y)e\(\rightarrow\)xN+2y/x________.3
\(\Rightarrow\)(5x-2y)Al+(18x-3y)HNO3\(\rightarrow\)(9x-1,5y)H2O+3NxOy+(5x-2y)Al(NO3)3
xFe+2y/x \(\rightarrow\)xFe+3 + (3x-2y)e .1
N+5 +1e\(\rightarrow\)N+4 ____________ .(3x-2y)
\(\rightarrow\)FexOy+(6x-2y)HNO3\(\rightarrow\)(3x-y)H2O+xFe(NO3)3+(3x-2y)NO2
a) \(H_2+FeSO_4\)
b) \(Ca\left(OH\right)_2\)
c) \(NO_2\)
8Al + 30HNO3 → 8Al(NO3)3 + 3N2O + 15H2O
8 × || Al → Al3+ + 3e
3 × || 2N+5 + 8e → 2N+4 (N2O)
10Al + 36HNO3 → 10Al(NO3)3 + 3N2 + 18H2O
Sự oxi hóa: Al → Al+3 + 3e
Sự khử: 2N+5 + 10e → N2
4Mg + 10HNO3 → 4Mg(NO3)2 + N2O + 5H2O
4 × || Mg → Mg2+ + 2e
1 × || 2N+5 + 8e → 2N+4 (N2O)
1,Mg + 2H2SO4 = MgSO4 + SO2 + 2H2O
2,Ca + 2H2SO4 = CaSO4 + SO2 + 2H2O
3 Al + 6HNO3 = Al(NO3)3 + 3NO2 + 3H2O
4,Al + 4HNO3 = Al(NO3)3 + NO + 2H2O
5,8Al + 30HNO3 = 8Al(NO3)3 + 3N2O + 15H2O
6,10Al + 36HNO3 = 10Al(NO3)3 + 3N2 + 18H2O
7,8Al + 10HNO3 = 8Al(NO3) + NH4NO3 + 3H2O
8,8Al + 15H2SO4 = 4Al2(SO4)3 + 3H2S + 12H2O
9, pthh ghi sai thiếu H
10,2Fe + 4H2SO4 = Fe2(SO4)3 + S + 4H2O
11,Fe + 6HNO3 = Fe(NO3)3 + 3NO2 + 3H2O
12,Fe + 4HNO3 = Fe(NO3)3 + NO + 2H2O
13,3Ca + 8HNO3 = 3Ca(NO3)2 + 2NO + 4H2O
14,KClO3 + 6HCl = KCl + 3Cl2 + 3H2O
15, cthh ghi sai hay sao ý
16,MnO2 + 4HCl = MnCl2 + Cl2 + 2H2O
17,Fe3O4 + 8HCl = FeCl2 + 2FeCl3 + 4H2O
18,Fe3O4 + 4H2SO4 = FeSO4 + Fe2(SO4)3 + 4H2O
19,Fe3O4 + 4CO = 3Fe + 4CO2
20, cthh ghi sai
cậu chép đề có vài chỗ ghi sai kí hiệu hóa học nữa đó, làm mik tìm mỏi cả mắt
3Cu+ 8HNO3--> 3Cu(NO3)2+ 2NO+ 4H2O
Cu+ 4HNO3-->Cu(NO3)2+2NO2+ 2H2O
2Fe+ 6H2SO4-->Fe2(SO4)3+ 3SO2+ 6H20
2Al+ 6H2SO4--> Al2(SO4)3+ 3SO2+ 6H2O
6Al+ 12H2SO4--> 3Al2(SO4)3+3S+ 12H2O
3Al+ 12HNO3--> 3Al(NO3)3+ 3NO+ 6H2O
10Al+ 32HNO3--> 10Al(NO3)3+ N2+ 16H2O
8Al+ 30HNO3--> 8Al(NO3)3+ 3NH4NO3+ 9H2O
đề bài !