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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.
pứ : (1) 3 - 8 - 3 - 2 - 4
(2) 2 - 4 - 1 - 1 -4
(3) 2 - 10 - 3 - 1 - 10
(4) 2 - 10 - 8 - 5 - 1- 2 -8
(6) 10 - 36 - 10 - 3 - 18
phản ứng 5 sai bạn ơi
\(3Cu+8HNO_3\rightarrow3Cu\left(NO_3\right)_2+2NO+4H_2O\)
\(10Al+36HNO_3\rightarrow10Al\left(NO_3\right)_3+3N_2+18H_2O\)
\(2Fe_3O_4+10H_2SO_4\rightarrow3Fe_2\left(SO_4\right)_3+SO_2+10H_2O\)
\(NH_4NO_3\rightarrow N_2O+2H_2O\)
\(NH_4NO_2\rightarrow N_2+2H_2O\)
\(2KMnO_4+16HCl\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)
1)\(N^{-3}H_3+Cl_2\rightarrow N^0_2+HCl\)
\(\left\{{}\begin{matrix}1\times|2N^{-3}\rightarrow N_2^0+6e\left(oxihóa\right)\\3\times|Cl_2^0+2e\rightarrow2Cl^{-1}\left(khử\right)\end{matrix}\right.\)
\(\Rightarrow2NH_3+3Cl_2\rightarrow N_2+6HCl\). Cl là chất oxi hóa và N là chất khử
2)\(N^{-3}H_3+O_2^0\rightarrow N^{+2}O+H_2O^{-2}\)
\(\left\{{}\begin{matrix}4\times|N^{-3}\rightarrow N^{+2}+5e\left(oxihóa\right)\\5\times|O_2^0+4e\rightarrow2O^{2-}\left(khử\right)\end{matrix}\right.\)
\(\Rightarrow4NH_3+5O_2\rightarrow4NO+6H_2O\). N là chất oxi hóa và O là chất khử
3)\(Al^0+Fe^{+\frac{8}{3}}_3O_4\rightarrow Al^{+3}_2O_3+Fe^0\)
\(\left\{{}\begin{matrix}4\times|2Al^0\rightarrow Al_2^{+3}+6e\left(oxihóa\right)\\3\times|Fe^{+\frac{8}{3}}_3+8e\rightarrow3Fe^0\left(khử\right)\end{matrix}\right.\)
\(\Rightarrow8Al+3Fe_3O_4\rightarrow4Al_2O_3+9Fe\)
Fe là chất khử và Al là chất oxi hóa
5Na2SO3 +2 KMnO4 +3H2SO4 ---->5 Na2SO4 + K2SO4 + 2MnSO4 + 3H2O
2CrCl3 + 3Cl2 + 16KOH ----> 2K2CrO4 + 2KCl + 8H2O
3Fe3O4 + 28HNO3 ----> 9Fe(NO3)3 + NO + 14H2O
Các bạn làm theo phương pháp thăng bằng electron giùm mình nha . Cảm ơn các bạn trước nha
1) 2Mg + 3\(H_2SO_4\) -> 2\(MgSO_4\) + \(H_2S\) +2 \(H_2O\)
2) 8Al + 30\(HNO_3\) ->8 \(Al\left(NO_3\right)_3\) + 3\(NH_4NO_3\) + 9\(H_2O\)
3) 8Al + 30\(HNO_3\) -> 8\(Al\left(NO_3\right)_3\) + 3\(N_2O\) + 15\(H_2O\)
4) 2KMnO\(_4\) + 16HCl -> 2KCl + 2\(MnCl_2\) + 5\(Cl_2\) + 8\(H_2O\)
5) \(K_2Cr_2O_7\) + 14HCl -> 2KCl +2CrCl\(_3\) + 3Cl\(_2\) + 7H\(_2\)O
10NH4ClO4 + 8P \(\rightarrow\) 8H3PO4 + 5Cl2 + 5N2 + 8H2O
3Cu2S + 22HNO3 \(\rightarrow\) 6Cu(NO3)2 + 3H2SO4 + 10NO + 8H2O
K2Cr2O7 + 3K2SO3 + 8KHSO4 \(\rightarrow\)8K2SO4 + Cr2(SO4)3 + 4H2O
2CrCl3 + 3Cl2 + 16NaOH \(\rightarrow\)2Na2CrO4 + 12NaCl + 8H2O
10NH4ClO4 + 8P → 8H3PO4 + 5Cl2 + 5N2 + 8H2O
3Cu2S + 22HNO3 → 6Cu(NO3)2 + 3H2SO4 + 10NO + 8H2O
K2Cr2O7 + 3K2SO3 + 8KHSO4 →8K2SO4 + Cr2(SO4)3 + 4H2O
2CrCl3 + 3Cl2 + 16NaOH →2Na2CrO4 + 12NaCl + 8H2O