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1. xFe2O3 + ( 3x - 2y) H2 -> 2FexOy + ( 3x - 2y ) H2O
2 . FexOy + ( x - y ) CO -> xFeO + ( x - y )CO2
3 . 8Al + 30HNO3 -> 8Al(NO3)3 + 3N2O + 15H2O
1. xFe2O3 + (3x-2y)H2 \(\rightarrow\) 2FexOy + (3x-2y)H2O
2. FexOy + yCO \(\rightarrow\) xFeO + yCO2
3. 8Al + 30HNO3 \(\rightarrow\)8Al(NO3)3 + 3N2O + 15H2O
10Fe + 36HNO3 → 10Fe(NO3)3 + 3N2 + H2O
3Mg + 8HNO3 →3 Mg(NO3)2 +2NO+4 H2O
FexOy + (y-x)H2 → xFeO + (y-x)H2O
CxHyOz +( x +\(\dfrac{y}{4}\)-\(\dfrac{z}{2}\) )O2 → xCO2 + \(\dfrac{y}{2}\)H2O
10Fe+36HNO3\(\rightarrow\)10Fe(NO3)3+3N2+18H2O
3Mg+8HNO3\(\rightarrow\)3Mg(NO3)2+2NO+4H2O
FexOy+(y-x)H2\(\rightarrow\)xFeO+(y-x)H2O
CxHyOz+(\(x+\dfrac{y}{4}-\dfrac{z}{2}\))O2\(\rightarrow\)xCO2+\(\dfrac{y}{2}H_2O\)
1.Cu + 2H2SO4 ----> CuSO4+ SO2+ 2H2O
2. FexOy+ (y-x)CO ---> xFeO +(y-x)CO2
3. 3FexOy+2yAl ---> 3xFe + yAl2O3
4.2FexOy+(6x-2y)H2So4-> xFe2(SO4)3 + (3x-2y) SO2+ (6x-2y)H2O5. FexOy+yH2----> xFe + yH2O
6. 4Al(NO3)3 ---> 2Al2O3 +12NO2+ 3O2
7. Ca(OH)2 + 2NH4NO3 ---> 2NH3 +Ca(NO3)2+ 2H2O
\(Cu+2H_2SO_4\rightarrow2H_2O+SO_2\uparrow+CuSO_4\)
\(Fe_xO_y+\left(y-x\right)CO\rightarrow xFeO+\left(y-x\right)CO_2\)
\(2yAl+3Fe_xO_y\rightarrow yAl_2O_3+3xFe\)
\(\left(6x-2y\right)H_2SO_4+2Fe_xO_y\rightarrow xFe_2\left(SO_4\right)_3+\left(6x-2y\right)H_2O+\left(3x-2y\right)SO_2\)\(yH_2+Fe_xO_y\rightarrow xFe+yH_2O\)
\(4Al\left(NO_3\right)_3\rightarrow2Al_2O_3+12NO_2\uparrow+3O_2\uparrow\)
\(Ca\left(OH\right)_2+2NH_4NO_3\rightarrow Ca\left(NO_3\right)_2+2H_2O+2NH_3\)
4FeS2+11O2\(\overset{t^0}{\rightarrow}Fe_2O_3+8SO_2\)
4FeS+7O2\(\overset{t^0}{\rightarrow}2Fe_2O_3+4SO_2\)
2FexOy+2yH2SO4\(\rightarrow\)xFe2(SO4)2y/x+yH2O
2KMnO4+16HCl\(\rightarrow\)2MnCl2+5Cl2+2KCl+8H2O
3Fe3O4+8Al\(\overset{t^0}{\rightarrow}4Al_2O_3+9Fe\)
1
2Al + 6HCl - > 2AlCL3 + 3H2
2
3Fe + 2O2 - > Fe3O4
3
3mg + 2fecl3 -> 3mgcl2 + 2fe
4
feo +h2 - > fe + h2o
1/(5x-2y) Al +(18x-6y) HNO3 ->(5x-2y) Al(NO3)3 + 3NxOy + (9x-3y)H2O
2/ FeS2 + 8HNO3 -------> Fe(NO3)3 + 2H2SO4 +5 NO +2 H2O
3/ CxHyOz + \(\left(x+\dfrac{y}{4}-\dfrac{z}{2}\right)\)O2 ------->x CO2 +\(\dfrac{y}{2}\) H2O
\\tham khảo nhé//
1) 4Fe(OH)2+O2--->2Fe2O3+4H2O
2) 2Al(OH)3--> Al2O3+3H2O
3) 2zCxHyOz+xO2--> 2xzCO2+yzH2O ( chưa chắc chắn)
4) 2KMnO4+16HCl-->2KCl+2MnCl2+5Cl2+8H2O
5) CnH2n+O2-->CO2+H2O ( không rõ đề)
1) 4Fe(OH)2+O2\(\rightarrow\)2Fe2O3+4H2O
2) 2Al(OH)3\(\rightarrow\)Al2O3+3H2O
3) CxHyOz+(x+\(\dfrac{y}{4}-\dfrac{z}{2}\))O2\(\rightarrow\)xCO2+\(\dfrac{y}{2}H_2O\)
4) 2KMnO4+16HCl\(\rightarrow\)2KCl+2MnCl2+5Cl2+8H2O
5) CnH2n+\(\dfrac{3n}{2}\)O2\(\rightarrow\)nCO2+nH2O
a/ Fe2O3 + 3 H2--to--> 2 Fe + 3 H2O
b/ Fe + 2 HCl---->FeCl2 + H2
c/ 2 Al + 6 HCl ---->2 AlCl3 + 3 H2
d/ 2 Al + 3 H2SO4 ---->Al2(SO4)3 + 3 H2
e/ Mg + 2 HCl ---->MgCl2 + H2
f/ Fe3O4 + 4 CO --to-->3 Fe + 4 CO2
g/ Mg + H2SO4 ---->MgSO4 + H2
h/ Fe3O4 + 4 H2 ---to->3 Fe + 4 CO2
i/ Fe + H2SO4 ---->FeSO4 + H2
j/ FeO + H2 --to-->Fe + H2O
k/ H2O --đpdd-->H2 + 1/2 O2
l/ O2 + 2 H2 --to--> 2 H2O
1.FeO2+H2->FeO+H2O
2.FeO4+2Al->FeO+Al2O3
Cân bằng PTHH:
1. FexOy + yH2 ---> xFe + yH2O
P/s: PT này mình đã làm rồi và viết thế này mới đúng nka bn