al → al2o3 → al2(so4)3 → alcl3 → al(oh)3 → al(no3)3 → al → al2(so4)3 → al(oh)3 → al2o3 → al →naalo2
Al->AlCl3->Al(OH)3->Al2(SO4)3->AlCl3->Al(NO3)3->Al(OH)3->Al2O3->Al(SO4)3
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(AlCl_3+3NaOH\rightarrow3NaCl+Al\left(OH\right)_3\)
\(2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+6H_2O\)
\(Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow2AlCl_3+3BaSO_4\)
\(AlCl_3+3AgNO_3\rightarrow3AgCl+Al\left(NO_3\right)_3\)
\(Al\left(NO_3\right)_3+3KOH\rightarrow3KNO_3+Al\left(OH\right)_3\)
\(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)
\(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
\(Al+\dfrac{3}{2}Cl_2\rightarrow AlCl_3\\ AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\\ 2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+6H_2O\\ Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow2AlCl_3+3BaSO_4\\ AlCl_3+3AgNO_3\rightarrow Al\left(NO_3\right)_3+3AgCl\\ Al\left(NO_3\right)_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaNO_3\\ 2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\\ Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
Bài 3: Hoàn thành chuỗi phản ứng sau:
a. Al → Al2O3→Al2(SO4)3→Al(OH)3 →Al2O3→Al →NaAlO2
b.Al→AlCl3→Al(NO3)3→Al(OH)3→Al2(SO4)3→AlCl3→Al
c. Fe→FeCl2→Fe(OH)2→FeSO4→Fe(NO3)2→Fe→Fe3O4→Fe
d.Fe→FeCl3→Fe→Fe3O4→FeSO4.
Bài 3: Hoàn thành chuỗi phản ứng sau:
a. Al → Al2O3→Al2(SO4)3→Al(OH)3 →Al2O3→Al →NaAlO2
b.Al→AlCl3→Al(NO3)3→Al(OH)3→Al2(SO4)3→AlCl3→Al
c. Fe→FeCl2→Fe(OH)2→FeSO4→Fe(NO3)2→Fe→Fe3O4→Fe
d.Fe→FeCl3→Fe→Fe3O4→FeSO4.
a, Al=Al2O3= AlCl3=Al(OH)3=Al2O3=Al2S3
b, Al2O3=Al=Al2(SO4)3=AlCl3=Al(OH)3=Al2O3
a)Mg(OH)2------> MgO--------> MgSO4--------> MgCl2---------> Mg(OH)2
b) Al2O3---------> Al----------> AlCl3--------> Al(NO3)3--------> Al2O3------> Al2(SO4)3
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)
\(2Al_2O_3\xrightarrow[criolit]{npnc}4Al+3O_2\)
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(AlCl_3+3AgNO_3\rightarrow Al\left(NO_3\right)_3+3AgCl\downarrow\)
\(4Al\left(NO_3\right)_3\underrightarrow{t^o}2Al_2O_3+12NO_2+3O_2\)
\(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
Al ➝Al2(SO4)3➝Al➝Al2O3➝AlCl3➝Al(OH)3➞Al2O3➝Al➝AlCl3
\(3Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\)
\(Al_2\left(SO_4\right)_3+3Cu\rightarrow3CuSO_4+2Al\)
\(4Al+3O_2\rightarrow2Al_2O_3\)
\(Al_2O_3+6HCl\rightarrow2AlCl_3+3H_2O\)
\(AlCl_3+3H_2O\rightarrow Al\left(OH\right)_3+3HCl\)
\(2Al\left(OH\right)_3\rightarrow Al_2O_3+3H_2O\)
\(2Al_2O_3\rightarrow4Al+3O_2\)
\(2Al+3Cl_2\rightarrow2AlCl_3\)
Bài 1:
1.FeO + O2 → Fe2O3
2.FexOy + O2 → Fe2O3
3.Al + HCl → AlCl3 + H2
4.Al2O3 + H2SO4 → Al2(SO4)3 + H2O
5.Al(OH)3 + HNO3 → Al(NO3)3 + H2O
6. Al + H2SO4 → Al2(SO4)3 + H2
7.C4H10 + O2 → CO2 + H2O
8. KMnO4 → K2MnO4 + MnO2 + O2
9.Cu(NO3)2 → CuO + NO2 + O2
10.M2Ox + HNO3 → M(NO3)x + H2O
11.Mg(OH)2 + HNO3 → Mg(NO3)2 + H2O
12.KClO3 → KCl + O2
13.CH4 + O2 → CO2 + H2O
14.Fe2O3 + H2 → FexOy + H2O
15.Fe3O4 + HCl → FeCl2 + FeCl3 + H2O
16.A2Ox + H2 → A + H2O
17.A2Ox + H2 → AO + H2O
18.A2Ox + H2 → AxOy + H2O
19.AxOy + H2 → AnOm + H2O
1.2FeO + \(\dfrac{1}{2}\)O2 → Fe2O3
2.2FexOy + \(\dfrac{3x-2y}{2}\) O2 → xFe2O3
3.2Al + 6HCl → 2AlCl3 + 3H2
4.Al2O3 + 3H2SO4 → Al2(SO4)3 + 3H2O
5.Al(OH)3 + 3HNO3 → Al(NO3)3 + 3H2O
6. 2Al + 3H2SO4 → Al2(SO4)3 + 3H2
7.2C4H10 + 13O2 → 8CO2 + 10H2O
8. 2KMnO4 → K2MnO4 + MnO2 + O2
9.2Cu(NO3)2 → 2CuO + 4NO2 + O2
10.M2Ox + 2xHNO3 → 2M(NO3)x + xH2O
11.Mg(OH)2 + 2HNO3 → Mg(NO3)2 + 2H2O
12.KClO3 → KCl + \(\dfrac{3}{2}\)O2
13.CH4 + 2O2 → CO2 + 2H2O
14.xFe2O3 + (3x-2y)H2 → 2FexOy + (3x-2y)H2O
15.Fe3O4 + 8HCl → FeCl2 + 2FeCl3 + 4H2O
Giải hộ nhé đừng thắc mắc:
a) Al → Al2O3 → Al(NO3)3 → Al(OH)3 → Na[Al(OH)4] → Al(OH)3 → Al2O3 → Na[Al(OH)4] → Al2(SO4)3 → KAl(SO4)2.12H2O
a) Al → Al2O3 → Al(NO3)3 → Al(OH)3 → Na[Al(OH)4] → Al(OH)3 → Al2O3 → Na[Al(OH)4] → Al2(SO4)3 → KAl(SO4)2.12H2O
4Al+3O2-to>2Al2O3
Al2O3+6HNO3->2Al(NO3)3+3H2O
Al(NO3)2+3NaOH->Al(OH)3+3NaNO3
Al(OH)3+NaOH->Na(Al(OH)4)
Na(Al(OH)4) + NH4Cl → Al(OH)3 + NH3 + NaCl + H2O
2Al(OH)3 -to>Al2O3+3H2O
Al2O3+3H2O+2NaOH->2Na(AlOH)4
2Na(Al(OH)4) + 4H2SO4 → Al2(SO4)3 + Na2SO4 + 8H2O
Al2(SO4)3+24H2O+K2SO4->2KAl(SO4)2.12H2O
Câu 1. Viết PTHH cho dãy chuyển đổi sau: a. Fe ( FeCl3 ( Fe(OH)3 ( Fe2O3 ( Fe ( FeSO4 ( FeS ( FeCl2 ( Fe(NO3)2 b. Al2O3 ( Al ( Al2(SO4)3 ( Al(OH)3 ( Al(NO3)3 ( Al → NaAlO2
\(a,2Fe+3Cl_2\xrightarrow{t^o}2FeCl_3\\ FeCl_3+3NaOH\to Fe(OH)_3\downarrow+3NaCl\\ 2Fe(OH)_3\xrightarrow{t^o}Fe_2O_3+3H_2O\\ Fe_2O_3+3CO\xrightarrow{t^o}2Fe+3CO_2\\ Fe+H_2SO_4\to FeSO_4+H_2\\ FeSO_4+BaS\to BaSO_4\downarrow+FeS\\ FeS+2HCl\to FeCl_2+H_2\\ FeCl_2+2AgNO_3\to Fe(NO_3)_2+2AgCl\downarrow\)
\(b,2Al_2O_3\xrightarrow[criolit]{đpnc}4Al+3O_2\\ 2Al+3H_2SO_4\to Al_2(SO_4)_3+3H_2\\ Al_2(SO_4)_3+6NaOH\to 2Al(OH)_3\downarrow+3Na_2SO_4\\ Al(OH)_3+3HNO_3\to Al(NO_3)_3+3H_2O\\ 2Al(NO_3)_3+3Mg\to 3Mg(NO_3)_2+2Al\\ Al+NaOH+H_2O\to NaAlO_2+\dfrac{3}{2}H_2\)