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![](https://rs.olm.vn/images/avt/0.png?1311)
a) $4P + 5O_2 \xrightarrow{t^o} 2P_2O_5$
b) $Mg + Cl_2 \xrightarrow{t^o} MgCl_2$
c) $2Na + 2H_2O \to 2NaOH + H_2$
d) $C + O_2 \xrightarrow{t^o} CO_2$
e) $C_xH_y + (x + \dfrac{y}{4})O_2 \xrightarrow{t^o} xCO_2 + \dfrac{y}{2}H_2O$
f) $2Al + Fe_2O_3 \xrightarrow{t^o} Al_2O_3 + 2Fe$
g) $2Al + 3H_2SO_4 \to Al_2(SO_4)_3 + 3H_2$
i) $Fe_xO_y + yCO \xrightarrow{t^o} xFe + yCO_2$
k) $Fe_2O_3 + 6HCl \to 2FeCl_3 +3 H_2O$
l) $3Fe + 2O_2 \xrightarrow{t^o} Fe_3O_4$
![](https://rs.olm.vn/images/avt/0.png?1311)
\(6KOH+Fe_2\left(SO_4\right)_3\rightarrow3K_2SO_4+2Fe\left(OH\right)_3\left(6:1:3:2\right)\)
\(2KNO_3\rightarrow2KNO_2+O_2\left(2:2:1\right)\)
\(2Al+3CuCl_2\rightarrow2AlCl_3+3Cu\left(2:3:2:3\right)\)
\(P_2O_5+3H_2O\rightarrow2H_3PO_4\left(1:3:2\right)\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a, 2Al+3H2SO4\(\rightarrow\)Al2SO4+3H2
c. 2Fe+3Cl2\(\rightarrow\)2FeCl3
b. 2NaOH+ZnCl2\(\rightarrow\).Zn(OH)2+2NaCl
d. 3Fe+2O2\(\rightarrow\)Fe3O4
\(\cdot2Al+3H_2SO_4\xrightarrow[]{}Al_2\left(SO_4\right)_3+3H_2\)
\(\cdot2NaOH+ZnCl_2\xrightarrow[]{}Zn\left(OH\right)_2+2NaCl\)
\(\cdot2Fe+3CL_2\xrightarrow[]{}2FeCl_3\)
\(\cdot3Fe+2O_2\xrightarrow[]{}Fe_3O_4\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a,2Al+3H_2SO_4\to Al_2(SO_4)_3+3H_2\\ 2:3:1:3\\ b,2Na+2H_2O\to 2NaOH+H_2\\ 2:2:2:1\\ c,4NH_3+5O_2\buildrel{{t^o,xt}}\over\to 4NO+6H_2O\\ 4:5:4:6\\ d,2KMnO_4+16HCl\to 2KCl+2MnCl_2+5Cl_2+8H_2O\\ 2:16:2:2:5:8\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 3Fe +2 O2 --to--> Fe3O4
b) 4P + 5O2 --to--> 2P2O5
c) Al2O3 + 3H2SO4 --> Al2(SO4)3 + 3H2O
d) Fe2O3 + 3H2SO4 --> Fe2(SO4)3 + 3H2O
e) 2Cu(NO3)2 --to--> 2CuO + 4NO2 + O2
\(a,3Fe+2O_2\xrightarrow{t^o}Fe_3O_4\\ b,4P+5O_2\xrightarrow{t^o}2P_2O_5\\ c,Al_2O_3+3H_2SO_4\to Al_2(SO_4)_3+3H_2O\\ d,Fe_2O_3+3H_2SO_4\to Fe_2(SO_4)_3+3H_2O\\ e,2Cu(NO_3)_2\xrightarrow{t^o}2CuO+4NO_2+O_2\uparrow\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a.2Ca+O_2\overset{t^o}{--->}2CaO\)
\(b.Fe+2HCl--->FeCl_2+H_2\)
\(c.4Al+3O_2\overset{t^o}{--->}2Al_2O_3\)
\(d.Al_2O_3+3H_2SO_4--->Al_2\left(SO_4\right)_3+3H_2O\)
\(e.2Fe\left(OH\right)_3\overset{t^o}{--->}Fe_2O_3+3H_2O\)
\(f.N_2+3H_2\overset{t^o}{--->}2NH_3\)
\(g.2KClO_3\xrightarrow[MnO_2]{t^o}2KCl+3O_2\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 4K + O2 -> 2K2O Tỉ lệ 4:1:2
b) 2Al + 3Cl2 -> 2AlCl3 Tỉ lệ 2:3:2
c) Al2O3 + 3H2SO4 -> Al2(SO4)3 + 3H2O Tỉ lệ 1:3:1:3
![](https://rs.olm.vn/images/avt/0.png?1311)
a, \(2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+6H_2O\)
b, \(ZnO+2HCl\rightarrow ZnCl_2+H_2O\)
c, \(3KOH+H_3PO_4\rightarrow K_3PO_4+3H_2O\)
d, \(CH_4+2O_2\underrightarrow{t^o}CO_2+2H_2O\)
a. \(2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
b. \(ZnO+2HCl\rightarrow ZnCl_2+H_2O\)
c. \(3KOH+H_3PO_4\rightarrow K_3PO_4+3H_2O\)
d. \(CH_4+2O_2\underrightarrow{t^o}CO_2+2H_2O\)
a) 2KNO3 --to--> 2KNO2 + O2 (pư phân hủy)
b) 2Al + 3H2SO4 --> Al2(SO4)3 + 3H2 (pư thế)
c) 2C + Fe3O4 --to--> 3Fe + 2CO2 (pư oxi hóa-khử)
d) 3CaO + P2O5 --> Ca3(PO4)2 (pư hóa hợp)
e) 2Al + Fe2O3 --to--> Al2O3 + 2Fe (pư oxi hóa-khử)
f) CH4 + Cl2 --as--> CH3Cl + HCl (pư thế)