Lập phương trình hóa học cho các sơ đồ phản ứng sau:
Al + H2SO4 ---> Al2(SO4)3 + ?
K
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5 tháng 1 2022
\(2Al+3CuSO_4\rightarrow Al_2\left(SO_4\right)_3+3Cu\)
Tỉ lệ Al : Cu = 2 : 3
\(Fe_2O_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+3H_2O\)
Tỉ lệ Fe2O3 : H2SO4 = 1 : 3
4 tháng 1 2023
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, \(CH_4+2O_2\underrightarrow{t^o}CO_2+2H_2O\)
DT
4 tháng 1 2023
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. \(CH_4+2O_2\underrightarrow{t^o}CO_2+2H_2O\)
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Al2(SO4)3 + ...
9 tháng 9 2021
Zn + 2HCl → ZnCl2 + H2
2H2 + O2 → 2H2O
2KClO3 ---to→ 2KCl + 3O2
2Al + 3H2SO4 → Al2(SO4)3 + 3H2
CuO + H2 → Cu + H2O
TC
19 tháng 12 2020
2Cu + O2 -> 2CuO
2Al(OH)3 + 3H2SO4 -> Al2(SO4)3 + 6H2O
2Fe + 3Cl2 -> 2FeCl3
CnH2n + 3n/2O2 -> nCO2 + nH2O
H
17 tháng 12 2022
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) $3Fe + 2O_2 \xrightarrow{t^o} Fe_3O_4$
14 tháng 12 2021
\(2H_2+O_2\underrightarrow{t^o}2H_2O\)
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
\(2Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\)
\(2Al + 3H_2SO_4 ----> Al_2(SO_4)_3 + 3H_2\)