a)Mg(OH)2------> MgO--------> MgSO4--------> MgCl2---------> Mg(OH)2
b) Al2O3---------> Al----------> AlCl3--------> Al(NO3)3--------> Al2O3------> Al2(SO4)3
K
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16 tháng 1 2022
b) \(Mg\underrightarrow{1}MgO\underrightarrow{2}MgSO_4\underrightarrow{3}MgCl_2\underrightarrow{4}Mg\left(OH\right)_2\)
(1) \(2Mg+O_2\underrightarrow{t^o}2MgO\)
(2) \(MgO+H_2SO_4\rightarrow MgSO_4+H_2O\)
(3) \(MgSO_4+BaCl_2\rightarrow MgCl_2+BaSO_4\)
(4) \(MgCl_2+2KOH\rightarrow Mg\left(OH\right)_2+2KCl\)
Chúc bạn học tốt
16 tháng 1 2022
a) \(Al\underrightarrow{1}Al_2O_3\underrightarrow{2}Al_2\left(SO_4\right)_3\underrightarrow{4}AlCl_3\underrightarrow{5}Al\left(OH\right)_3\)
(1) \(2Al+3O_2\underrightarrow{t^o}2Al_2O_3\)
(2) \(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
(3) \(Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow2AlCl_3+3BaSO_4\)
(4) \(AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\)
Chúc bạn học tốt
30 tháng 11 2018
a.
2Al2O3 \(\underrightarrow{t^o}\)4Al + 3O2\(\uparrow\)
Al + 6HNO3 \(\rightarrow\) Al(NO3)3\(\downarrow\) + 3NO2 + 3H2O
Al(NO3)3 + NaOH \(\rightarrow\) Al(OH)3\(\downarrow\) + NaNO3
2Al(OH)3 \(\xrightarrow[criolit]{đpnc}\) Al2O3 + 3H2O
Al2O3 + 3H2SO4 \(\rightarrow\) Al2(SO4)3 + 3H2O
Al2(SO4)3 + 3BaCl2 \(\rightarrow\) 3BaSO4\(\downarrow\) + 2AlCl3
2AlCl3 \(\xrightarrow[criolit]{đpnc}\) 2Al + 3Cl2\(\uparrow\)
2Al + 3CuSO4 \(\rightarrow\) 3Cu + Al2(SO4)3
8 tháng 4 2022
a)
(1) 2Al + 6HCl --> 2AlCl3 + 3H2
(2) AlCl3 + 3NaOH --> Al(OH)3\(\downarrow\) + 3NaCl
(3) 2Al(OH)3 + 3H2SO4 --> Al2(SO4)3 + 6H2O
(4) Al2(SO4)3+ 3Ba(NO3)2 --> 2Al(NO3)3 + 3BaSO4\(\downarrow\)
b)
(1) 2Na + 2H2O --> 2NaOH + H2
(2) 2NaOH + H2SO4 --> Na2SO4 + 2H2O
(3) Na2SO4 + BaCl2 --> BaSO4\(\downarrow\) + 2NaCl
(4) NaCl + AgNO3 --> NaNO3 + AgCl\(\downarrow\)
c)
(1) 2Mg + O2 --to--> 2MgO
(2) MgO + 2HCl --> MgCl2 + H2O
(3) MgCl2 + 2NaOH --> Mg(OH)2\(\downarrow\) + 2NaCl
(4) Mg(OH)2 + H2SO4 --> MgSO4 + 2H2O
8 tháng 4 2022
a)\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(2AlCl_3+3Ba\left(OH\right)_2\rightarrow2Al\left(OH\right)_3+3BaCl_2\)
\(2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
\(Al_2\left(SO_4\right)_3+3Ba\left(NO_3\right)_2\rightarrow2Al\left(NO_3\right)_3+3BaSO_4\)
b)\(2Na+2H_2O\rightarrow2NaOH+H_2\)
\(2NaOH+H_2SO_4\rightarrow Na_2SO_4+2H_2O\)
\(Na_2SO_4+BaCl_2\rightarrow2NaCl+BaSO_4\)
\(NaCl+HNO_3\rightarrow NaNO_3+HCl\)
Câu c em tự luyện tập nhé!!!
4 tháng 12 2016
a/
- C + O2 ===> CO2
- CO2 + Ca(OH)2 ===> CaCO3 + H2O
- CaCO3 + Ba(OH)2 ===> Ca(OH)2 + BaCO3
- CO2 + Ca(OH)2 ===> CaCO3 + H2O
- CaCO3 + 2HCl ===> CaCl2 + CO2 + H2O
b/
- 4Al + 3O2 ===> 2Al2O3
- Al2O3 + 6HNO3 ===> 2Al(NO3)3 + 3H2O
- Al(NO3)3 + 3NaOH ===> Al(OH)3 + 3NaNO3
- 2Al(OH)3 + 6HCl ===> 2AlCl3 + 3H2O
- 2AlCl3 + 3Mg ===> 3MgCl2 + 2Al
FS
4 tháng 12 2016
a)c+o2->co2
co2+ca(oh)2->caco3 +h2o
caco3+ba(oh)2->CA(OH)2+baco3
co2+ca(oh)2->caco3 +h2o
caco3+bacl2->cacl2+baco3
5 tháng 10 2023
1. \(Fe+H_2SO_4\rightarrow FeSO_4+H_2\)
2. \(Zn+H_2SO_4\rightarrow ZnSO_4+H_2\)
3. \(Mg+H_2SO_4\rightarrow MgSO_4+H_2\)
4. \(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
5. \(ZnO+2HNO_3\rightarrow Zn\left(NO_3\right)_2+H_2O\)
6. \(BaO+H_2SO_4\rightarrow BaSO_4+H_2O\)
7. \(Fe\left(OH\right)_3+3HCl\rightarrow FeCl_3+3H_2O\)
8. \(Al\left(OH\right)_3+3HNO_3\rightarrow Al\left(NO_3\right)_3+3H_2O\)
9. \(Ca\left(OH\right)_2+H_2SO_4\rightarrow CaSO_4+2H_2O\)
10. \(Cu\left(OH\right)_2+H_2SO_4\rightarrow CuSO_4+2H_2O\)
HH
3
29 tháng 12 2020
4Al+3O2----to--->2Al2O3
Al2O3 +3H2SO4----->Al2(SO4)3+3H2O
Al2(SO4)3+3BaCl2------>2AlCl3+3BaSO4
2AlCl3+3Ca(OH)2---->2Al(OH)3+3CaCl2
Al(OH)3+3HNO3---->Al(NO3)3+3H2O
2Al(NO3)3+3Mg----->3Mg(NO3)2+2Al
2Al+3H2SO4------->Al2(SO4)3+3H2
Al2(SO4)3+3Ca(OH)2------>2Al(OH)3+3CaSO4
2Al(OH)3-----to----->Al2O3+3H2O
2Al2O3----\(\dfrac{t^o}{criolit}\)---->4Al+3O2
2Al+2H2O+2NaOH------>2NaAlO2+3H2
K
29 tháng 12 2020
4Al+3O2\(\underrightarrow{t^o}\) 2Al2O3
Al2O3+H2SO4 —> Al2(SO4)3+3H2O
Al2(SO4)3+3BaCl2–>3BaSO4\(\downarrow\)+2AlCl3
AlCl3+3NaOH—>Al(OH)3\(\downarrow\)+3NaCl
Al(OH)3+HNO3 —>Al(NO3)3+NO2\(\uparrow\)+H2O
2Al(NO3)3+3Mg—>3Mg(NO3)2+2Al\(\downarrow\)
2Al+3H2SO4–>Al2(SO4)3+3H2\(\uparrow\)
Al2(SO4)3+6NaOH—>2Al(OH)3+3Na2SO4
2Al(OH)3\(\underrightarrow{t^o}\)Al2O3+3H2O
2Al2O3\(\xrightarrow[criolit]{đien.phan.nong.chay}\)
4Al+3O2
2Al+2NaOH+2H2O—>2NaAlO2+3H2
a)
\(Mg\left(OH\right)_2\underrightarrow{t^o}MgO+H_2O\)
\(MgO+H_2SO_4\rightarrow MgSO_4+H_2O\)
\(MgSO_4+BaCl_2\rightarrow BaSO_4\downarrow+MgCl_2\)
\(MgCl_2+2NaOH\rightarrow Mg\left(OH\right)_2\downarrow+2NaCl\)
b)
\(2Al_2O_3\xrightarrow[criolit]{npnc}4Al+3O_2\)
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(AlCl_3+3AgNO_3\rightarrow Al\left(NO_3\right)_3+3AgCl\downarrow\)
\(4Al\left(NO_3\right)_3\underrightarrow{t^o}2Al_2O_3+12NO_2+3O_2\)
\(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)