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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) $3Fe + 2O_2 \xrightarrow{t^o} Fe_3O_4$
\(2H_2+O_2\underrightarrow{t^o}2H_2O\)
2:1:2
\(4Fe+3O_2\underrightarrow{t^o}2Fe_2O_3\)
4:3:2
\(2Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\)
2:3:1:3
Phản ứng a) 2Mg + O2 → 2MgO. Phản ứng oxi hóa khử ( phản ứng hóa hợp).
Phản ứng b) là phản ứng oxi- hóa khử (phản ứng phân hủy).
Phản ứng c) là phản ứng thế.
<p font-family:times="" new="" roman,serif;="" font-size:14.0pt;="" line-height:115%"="">1. CaCO3 --to--> CaO + CO2
2. MgCl2 +2 KOH → Mg(OH)2 +2 KCl
3. Cu(OH)2 +2 HCl → CuCl2 + 2H2O
4. P2O5 + 3H2O ----> 2 H3PO4
5. 4P +5 O2 to→ 2P2O5
6. 2Al + 3 H2SO4 ----> Al2(SO4)3 + 3H2
7. Zn + 2 HCl ----> ZnCl2 + H2
8. N2 + O2 to→ 2NO
9. 2NO + O2 to→ 2NO2
10.4NO2 + O2 + 2H2O → 4HNO3
1. CaCO3 ----> CaO + CO2
2. MgCl2 + 2KOH → Mg(OH)2 + 2KCl
3. Cu(OH)2 + 2HCl → CuCl2 + 2H2O
4. P2O5 + 3H2O ----> 2H3PO4
5. 4P + 5O2 → 2P2O5
6. 2Al + 3H2SO4 ----> Al2(SO4)3 + 3H2
7. Zn + 2HCl ----> ZnCl2 + H2
8. N2 + O2 → 2NO
9. 2NO + O2 → 2NO2
10.4NO2 + O2 + 2H2O → 4HNO3
2Cu + O2 -> 2CuO
2Al(OH)3 + 3H2SO4 -> Al2(SO4)3 + 6H2O
2Fe + 3Cl2 -> 2FeCl3
CnH2n + 3n/2O2 -> nCO2 + nH2O
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Al2(SO4)3 + ...
Zn + 2HCl → ZnCl2 + H2
2H2 + O2 → 2H2O
2KClO3 ---to→ 2KCl + 3O2
2Al + 3H2SO4 → Al2(SO4)3 + 3H2
CuO + H2 → Cu + H2O
\(Mg+2HCl\rightarrow MgCl_2+H_2\\ 2Al+3Cl_2\rightarrow\left(t^o\right)2AlCl_3\\ 2H_2O\rightarrow\left(đp\right)2H_2+O_2\\ 2Al+3CuSO_4\rightarrow Al_2\left(SO_4\right)_3+3Cu\)
a, 2Al+3H2SO4\(\rightarrow\)Al2SO4+3H2
c. 2Fe+3Cl2\(\rightarrow\)2FeCl3
b. 2NaOH+ZnCl2\(\rightarrow\).Zn(OH)2+2NaCl
d. 3Fe+2O2\(\rightarrow\)Fe3O4
\(\cdot2Al+3H_2SO_4\xrightarrow[]{}Al_2\left(SO_4\right)_3+3H_2\)
\(\cdot2NaOH+ZnCl_2\xrightarrow[]{}Zn\left(OH\right)_2+2NaCl\)
\(\cdot2Fe+3CL_2\xrightarrow[]{}2FeCl_3\)
\(\cdot3Fe+2O_2\xrightarrow[]{}Fe_3O_4\)
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. \(CH_4+2O_2\underrightarrow{t^o}CO_2+2H_2O\)
\(a.2Mg+O_2--->2MgO\)
b.\(2Al+3CuSO4--->Al_2\left(SO\text{4}\right)_3+3Cu\)
a. đk t0