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2Fe(OH)2 + 4H2SO4 ---> Fe2(SO4)3 + SO2 + 6H2O
4Cu2O + 18HNO3 ---> 8Cu(NO3)2 + NH4NO3 + 7H2O
4FexOy + (12x-4y) H2SO4 ---> 2x Fe2(SO4)3 + (6x-4y) SO2 + (12x-4y) H2O
FexOy + (4x-2y) HNO3 ---> x Fe(NO3)2 + (2x-2y) NO2 + (2x-y) H2O
(5t-2z) FexOy + (18xt - 2yt - 6xz) HNO3---> (5tx-2zx) Fe(NO3)3 + (3x-2y) NtOz + (9xt-yt-3xz) H2O
1)
HCOOH\(\underrightarrow{^{to}}\)CO+ H2O
CO+\(\frac{1}{2}\)O2\(\underrightarrow{^{to}}\) CO2
CO2+ C\(\underrightarrow{^{to}}\) 2CO
CO+ FeO\(\underrightarrow{^{to}}\) Fe+ CO2
2)
CaCO3\(\underrightarrow{^{to}}\) CaO+ CO2
CO2+ NaOH \(\rightarrow\) NaHCO3
2NaHCO3 \(\underrightarrow{^{to}}\) Na2CO3+ CO2+ H2O
Na2CO3+ 2HCl \(\rightarrow\) 2NaCl+ CO2+ H2O
3)
SiF4+ 2Mg\(\underrightarrow{^{to}}\) Si+ 2MgF2
Si+ O2 \(\underrightarrow{^{to}}\) SiO2
SiO2+ 2NaOH\(\underrightarrow{^{to}}\)Na2SiO3+ H2O
Na2SiO3+ 2HCl \(\rightarrow\) 2NaCl+ H2SiO3
1. BaSO4+Na2CO3→BaSO4+Na2CO3→BaCO3+Na2SO4BaCO3+Na2SO4
2. 2FeCl3+3Ba(OH)2→2FeCl3+3Ba(OH)2→2Fe(OH)3+3BaCl22Fe(OH)3+3BaCl2
3. (NH4)2SO4+2KOH→(NH4)2SO4+2KOH→2NH3+2H2O+K2SO42NH3+2H2O+K2SO4
4. FeS+2HCl→FeS+2HCl→H2S+FeCl2H2S+FeCl2
5. NaOH+HClO→NaClO+H2ONaOH+HClO→NaClO+H2O
6. CO2+2NaOH→Na2CO3+H2O
(NH4)2SO4 + Ba(OH)2 -> BaSO4 + 2NH3 + 2H2O
2NH3 + 3Cl2 -> N2 + 6HCl
N2 + 3H2 -> 2NH3
4NH3 + 5O2 -> 4NO + 6H2O
2NO + O2 -> 2NO2
4NO2 + O2 + 2H2O -> 4HNO3
HNO3 + NH3 -> NH4NO3
NH4NO3 -> N2O + 2H2O
pt (4) cần điều kiện nhiệt độ, xúc tác Pt. Nếu chỉ điều kiện nhiệt độ thì tạo thành N2.
NH4NO2--->N2+2H2O
N2+O2---->2NO
2NO+O2--->2NO2
4NO2+O2+2H2O--->4HNO3
HNO3+NH3--->NH4NO3
NH4NO3+2NaOH--->NaNO3+NH3+H2O
NH3+HCl--->NH4Cl
N2+3H2--->2NH3
2NH3+5/2O2---->2NO+3H2O
2NO+O2--->2NO2
4NO2+O2+2H2O--->4HNO3
HNO3+NH3--->NH4NO3
NH4NO3+NaOH=---->NH3+H2O+NaNO3
2NH3---->N2+3H2
N2+6Na---->2Na3N
1. \(\text{NH4NO2 → 2H2O + N2 }\)
2.\(\text{N2 + O2 ↔ 2NO}\uparrow\)
3.\(\text{2NO + O2 → 2NO2}\uparrow\)
4.\(\text{H2O + 3NO2 → 2HNO3 + NO}\uparrow\)
5.\(\text{HNO3 + NH3 → NH4NO3}\)
6.\(\text{NaOH + NH4NO3 → H2O + NaNO3 + NH3}\uparrow\)
7.\(\text{3Cl2 + 2NH3 → 6HCl + N2}\uparrow\)
8.\(\text{HCl + NH3 → NH4Cl}\)
\(N_2+3H_2\underrightarrow{t^o,p}2NH_3\)
\(4NH_3+5O_2\underrightarrow{t^o,xt}4NO+6H_2O\)
\(2NO+O_2\rightarrow2NO_2\)
\(4NO_2+O_2+2H_2O\rightarrow4HNO_3\)
\(Cu+4HNO_3\rightarrow Cu\left(NO_3\right)_2+2NO_2+2H_2O\)
\(2Cu\left(NO_3\right)_2\underrightarrow{t^o}2CuO+4NO_2+O_2\)
\(1.Fe\left(OH\right)2+H2SO4\left(l\right)->FeSO4+2H2O\)
\(2.Na2CO3+Ca\left(NO3\right)2->2NaNO3+CaCO3\downarrow\)
\(3,K2CO3+2HCl->2KCl+CO2\uparrow+H2O\)
4.\(CuCl2+H2S->CuS\downarrow+2HCl\)
\(5.2NaOH+SO2->Na2SO3+H2O\)
\(6.Na2SO4+Ba\left(OH\right)2->2NaOH+BaSO4\downarrow\)
\(7.Ba\left(OH\right)2+\left(NH4\right)2SO4->BaSO4\downarrow+2NH3\uparrow+H2O\)
\(8.2Al+3H2SO4->Al2\left(SO4\right)3+3H2\uparrow\)
\(9.3Cu+8HNO3->3Cu\left(NO3\right)2+2NO\uparrow+4H2O\)
\(10.Al+4HNO3->Al\left(NO3\right)3+No\uparrow+2H2O\)
\(11.Na2SO3+H2SO4->Na2SO4+SO2\uparrow+H2O\)
1/
\(\left(1\right)4NH_3+5O_2\xrightarrow[pt]{t^0}4NO+6H_2O\)
\(\left(2\right)NO+\frac{1}{2}O_2\rightarrow NO_2\)
\(\left(3\right)4NH_3+3O_2\underrightarrow{t^0}2N_2+6H_2O\)
\(\left(4\right)N_2+O_2\rightarrow2NO\uparrow\)
2/
\(\left(1\right)2NH_4NO_3\underrightarrow{t^0}2N_2+O_2+4H_2O\)
\(\left(2\right)N_2+3H_2\underrightarrow{\leftarrow}2NH_3\)
\(\left(3\right)3NH_3+FeCl_3+3H_2O\rightarrow Fe\left(OH\right)_3+3NH_4Cl\)
\(\left(4\right)Fe\left(OH\right)_3+3HNO_3\rightarrow Fe\left(NO_3\right)_3+3H_2O\)
\(\left(5\right)4Fe\left(NO_3\right)_3\rightarrow2Fe_2O_3+12NO_2+3O_2\)
\(\left(6\right)2NO_2+\frac{1}{2}O_2+H_2O\rightarrow2HNO_3\)
\(\left(7\right)NaOH+HNO_3\rightarrow NaNO_3+H_2O\)
\(\left(8\right)2NaNO_3\rightarrow2NaNO_2+O_2\)