4Al+3O₂----t^o--->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-----t^o----->Al₂O₃+3H₂O

2Al₂O₃----\(\dfrac{t^o}{criolit}\)---->4Al+3O₂

2Al+2H₂O+2NaOH------>2NaAlO₂+3H₂

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

\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)

\(AlCl_3+3NaOH\rightarrow3NaCl+Al\left(OH\right)_3\)

\(2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+6H_2O\)

\(Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow2AlCl_3+3BaSO_4\)

\(AlCl_3+3AgNO_3\rightarrow3AgCl+Al\left(NO_3\right)_3\)

\(Al\left(NO_3\right)_3+3KOH\rightarrow3KNO_3+Al\left(OH\right)_3\)

\(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)

\(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)

\(Al+\dfrac{3}{2}Cl_2\rightarrow AlCl_3\\ AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\\ 2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+6H_2O\\ Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow2AlCl_3+3BaSO_4\\ AlCl_3+3AgNO_3\rightarrow Al\left(NO_3\right)_3+3AgCl\\ Al\left(NO_3\right)_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaNO_3\\ 2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\\ Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)

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

ok

\(3Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\)

\(Al_2\left(SO_4\right)_3+3Cu\rightarrow3CuSO_4+2Al\)

\(4Al+3O_2\rightarrow2Al_2O_3\)

\(Al_2O_3+6HCl\rightarrow2AlCl_3+3H_2O\)

\(AlCl_3+3H_2O\rightarrow Al\left(OH\right)_3+3HCl\)

\(2Al\left(OH\right)_3\rightarrow Al_2O_3+3H_2O\)

\(2Al_2O_3\rightarrow4Al+3O_2\)

\(2Al+3Cl_2\rightarrow2AlCl_3\)

\(2Al+3O_2\underrightarrow{^{^{t^o}}}2Al_2O_3\)

\(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)

\(Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow2AlCl_3+3BaSO_4\)

\(AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\)

\(2Al\left(OH\right)_3\underrightarrow{^{^{t^o}}}Al_2O_3+3H_2O\)

\(2NaOH+Al_2O_3\rightarrow2NaAlO_2+H_2O\)

Axit loại 1: tạo H2

1. Al + HCl -> AlCl3+H2

2. Al + H2SO4 loãng ->Al2(SO4)3

Axit loại 2: không tạo H2

3. Al + HNO3 loãng ->H2O+NO+Al(NO3)3

4. Al + HNO3 đặc, nóng ->H2O+NO2+Al(NO3)3

5. Al + H2SO4 đặc, nóng -> h2o+so2+Al2(so4)3

Axit H2SO4 đặc, nguội - HNO3 đặc, nguội

6. Al + H2SO4 đặc nguội ->ko pư

7. Al + HNO3 đặc nguội ->ko pu2w

Viết PTHH ( nếu có )

a. Al + Cuso4 ->

b. Al + FeSO4 ->

c. Al + Fe2(SO4)3 ->

d. Al + AgNO3 ->

e. Al + FeCl3 ->

f. Al + MgSO4 ->

4Al+3O2--t--> 2Al2O3

2Al2O3 ------(DPNC criolit)----> 4Al +3O2

2Al+6HCl=> 2AlCl3+3H2

AlCl3+3NaOH=> 3NaCl+Al(OH)3

2Al(OH)3+3H2SO4=> Al2(SO4)3+6H2O

$4Al + 3O_2 \xrightarrow{t^o} 2Al_2O_3$
$Al_2O_3 + 6HCl \to 2AlCl_3 + 3H_2O$
$AlCl_3 + 3KOH \to Al(OH)_3 + 3KCl$
$2Al(OH)_3 \xrightarrow{t^o} Al_2O_3 + 3H_2O$
$2Al_2O_3 \xrightarrow{dpnc} 4Al + 3O_2$

PT5 sai nhé bạn Các oxit của KL mạnh ko bị khử nha

1) 2Al+2NaOH+2H₂O\(\rightarrow\)2NaAlO₂+3H₂

2) NaAlO₂+CO₂+2H₂O\(\rightarrow\)NaHCO₃+Al(OH)₃

3) Al(OH)₃+NaOH\(\rightarrow\)NaAlO₂+2H₂O

4) 2Al(OH)₃\(\rightarrow\)Al₂O₃+3H₂O

5) Al₂O₃+3H₂\(\rightarrow\)2Al+3H₂O

6) 4Al+3O₂\(\rightarrow\)2Al₂O₃

7) 2Al+ 3FeCl₂\(\rightarrow\)2AlCl₃+3Fe

8) 4Fe+3O₂\(\overset{t^0>450^0C}{\rightarrow}2Fe_2O_3\)

9) Fe₂O₃+2Al\(\rightarrow\)Al₂O₃+2Fe

10) Al₂O₃+2NaOH\(\rightarrow\)2NaAlO₂+H₂O

11) 2Al+3Fe(NO₃)₂\(\rightarrow\)2Al(NO₃)₃+3Fe

12) Al(NO₃)₃+3NaOH\(\rightarrow\)Al(OH)₃+3NaNO₃

13) 4Al+3O₂\(\rightarrow\)2Al₂O₃

14) Al₂O₃+6HCl\(\rightarrow\)2AlCl₃+3H₂O

15) AlCl₃+3NaOH\(\rightarrow\)Al(OH)₃+3NaCl