Cân bằng pt : FeO+HNO3 TẠO THÀNH Fe(NO3)3+NO+H2O
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\(1.Fe + 4HNO_3→ Fe(NO_3)_3 + NO +2 H_2O\)
\(Fe\rightarrow Fe^{3+}+3e|.1\\ N^{+5}+3e\rightarrow N^{+2}|.1\)
\(2.3FeO + 10HNO_3 → 3Fe(NO_3)_3 + NO +5 H_2O \)
\(Fe^{+2}\rightarrow Fe^{3+}+1e|.3\\ N^{+5}+3e\rightarrow N^{+2}|.1\)
\(3.2FeO +4 H_2SO_4 → Fe_2(SO_4)_3 + SO_2 + 4H_2O\)
\(2Fe^{+2}\rightarrow Fe_2^{3+}+2e|.1\\ S^{+6}+2e\rightarrow S^{+4}|.1\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Cân bằng như sau:
3FeO + 10HNO3 => 3Fe(NO3)3 + NO + 5H2O
CHÚC BẠN HỌC TỐT!!!
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a,4Mg+10HNO_3\to 4Mg(NO_3)_2+NH_4NO_3\uparrow+3H_2O\\ b,2Fe_xO_y+(6x-2y)H_2SO_4\to xFe_2(SO_4)_3+(3x-2y)SO_2\uparrow+(6x-2y)H_2O\\ c,3Fe_xO_y+(12x-2y)HNO_3\to 3xFe(NO_3)_3+(3x-2y)NO\uparrow+(6x-y)H_2O\\ d,2FeO+4H_2SO_4\to Fe_2(SO_4)_3+SO_2\uparrow+4H_2O\\ e,3Fe_3O_4+28HNO_3\to 9Fe(NO_3)_3+NO\uparrow+14H_2O\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 3FeO + 10HNO3 --> 3Fe(NO3)3 + NO + 5H2O
b) 4Zn + 5H2SO4 --> 4ZnSO4 + H2S + 4H2O
c) FexOy + (y-x)CO --to--> xFeO + (y-x)CO2
d) \(2C_xH_yO_z+\dfrac{4x+y-2z}{2}O_2\underrightarrow{t^o}2xCO_2+yH_2O\)
e) 3Fe3O4 + 28HNO3 --> 9Fe(NO3)3 + NO + 14H2O
g) 2KMnO4 + 16HCl --> 2KCl + 2MnCl2 + 5Cl2 + 8H2O
h) 2Al + 2NaOH + 2H2O --> 2NaAlO2 + 3H2
i) 2Cu(NO3)2 --to--> 2CuO + 4NO2 + O2
k) 2NaOH + Cl2 --> NaCl + NaClO + H2O
l) \(C_nH_{2n+2}+\dfrac{3n+1}{2}O_2\underrightarrow{t^o}nCO_2+\left(n+1\right)H_2O\)
m) 3FexOy + (12x-2y)HNO3 --> 3xFe(NO3)3 + (3x-2y)NO + (6x-y)H2O
![](https://rs.olm.vn/images/avt/0.png?1311)
3FeO + 10HNO3 --> 3Fe(NO3)3 + NO + 5H2O
Fe+2-1e-->Fe+3 | x3 |
N+5 +3e--> N+2 | x1 |
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
Bạn xem lại PT 1 và 3 nhé.
\(\overset{0}{Al}+H\overset{+5}{N}O_3\rightarrow\overset{+3}{Al}\left(NO_3\right)_3+\overset{0}{N_2}+H_2O\)
\(\overset{0}{Al\rightarrow}\overset{+3}{Al}+3e|\times10\)
\(2\overset{+5}{N}+10e\rightarrow\overset{0}{N_2}|\times3\)
⇒ 10Al + 36HNO3 → 10Al(NO3)3 + 3N2 + 18H2O
\(\overset{^{+2y/x}}{Fe_x}O_y+H\overset{+5}{N}O_3\rightarrow\overset{+3}{Fe}\left(NO_3\right)_3+\overset{+4}{N}O_2+H_2O\)
\(\overset{^{+2y/x}}{Fe_x}\rightarrow x\overset{+3}{Fe}+\left(3x-2y\right)e|\times1\)
\(\overset{+5}{N}+e\rightarrow\overset{+4}{N}|\times\left(3x-2y\right)\)
⇒ FexOy + (6x-2y)HNO3 → xFe(NO3)3 + (3x-2y)NO2 + (3x-y)H2O
8Fe + 30HNO3 -> 8Fe(NO3)3 + 3NO + 15H2O
Fe3O4 + HNO3 → Fe(NO3)3 + NxOy + H2O
Fe3 8/3+ → 3Fe 3+ + 8e
x N+5 + 5x - 2y → Nx 2y/x +
Phương trình cân bằng
( 5x - 2y ) Fe3O4 + ( 53x - 2y ) HNO3 → 3( 5x - 2y ) Fe(NO3)3 + 8NxOy + ( 53x - 2y )/2 H2O