a) 2Al+ 3H2SO4-> Al2(SO4)3+3H2

b) 2Fe(OH)3+ 3H2SO4-> Fe2(SO4)3+ 6H2O

a) 2 \(\rightarrow\)

b) 2 \(\rightarrow\)

(1) 2Al(OH)3--^to--->Al2O3+3H2O

(2) 2Al2O3---dpnc-->4Al+3O2

(3) 2Al+6H2SO4--^to-->Al2(SO4)3+6H2O+3SO2

(4) Al2(SO4)3+3BaCl2---->2AlCl3+3BaSO4

Chất thứ 2 trong sơ đồ phải là Al₂O₃ bạn nhé!

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

\(2Al_2O_3\underrightarrow{đpnc}4Al+3O_2\)

\(2Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\)

\(Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow2AlCl_3+3BaSO_{4\downarrow}\)

Bạn tham khảo nhé!

a)\(4Al+3O_2\underrightarrow{t^o}2Al_2O_3\)

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

   \(2AlCl_3+3Ba\left(OH\right)_2\rightarrow2Al\left(OH\right)_3\downarrow+3BaCl_2\)

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

   \(2Al+3S\underrightarrow{t^o}Al_2S_3\)

`Fe + 2HCl -> FeCl_2 + H_2`

`2Na + 2HCl -> 2NaCl + H_2`

`2Al + 6HCl -> 2AlCl_3 + 3H_2`

`2Al(OH)_3 + 3H_2SO_4 -> Al_2(SO_4)_3 + 6H_2O`

Fe + 2HCl → FeCl₂ + H₂
2Na + 2HCl → 2NaCl + H₂
2Al + 6HCl → 2AlCl₃ + 3H₂
2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 6H₂O

\(Fe+2HCl\rightarrow FeCl_2+H_2\)

\(2Na+2HCl\rightarrow2NaCl+H_2\)

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

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

1) Al\(_2\)(SO\(_4\))\(_3\)+3BaCl\(_2\)→2AlCl\(_3\)+3BaSO\(_4\)↓

2)AlCl\(_3\)+3AgNO\(_3\)→Al(NO\(_3\))\(_3\)+3AgCl↓

3)Al(NO\(_3\))\(_3\)+3NaOH→Al(OH)\(_3\)+3NaNO\(_3\)

4)2Al(OH)\(_3\)\(\underrightarrow{to}\)Al₂O₃+3H₂O

5)2Al₂O₃\(\xrightarrow[criolit]{đpnc}\)4Al+3O₂

Mg(OH)₂+2HCl----->MgCl₂+2H₂O

Al₂(SO₄)₃+6HCl----->2AlCl₃+3H₂SO₄

MgO+H₂SO₄----->MgSO₄+H₂O

MgCO₃+H₂SO₄----->MgSO₄+CO₂+H₂O

Mg(NO₃)₂+H₂SO₄----->MgSO₄+2HNO₃

Al₂(SO₄)₃+3H₂SO₄----->2Al(HSO₄)₃

Theo ý kiến của mình là như vậy có gì sai mong bạn thông cảm

Mg(OH)₂+ 2HCl -----> MgCl₂+ 2H₂O

Al₂(SO₄)₃+ HCl (k có p/ư xảy ra)

MgO+ H₂SO₄----> MgSO₄+ H₂O

MgCO₃+ H₂SO₄ -----> MgSO₄+ CO₂+ H₂O

Mg(NO₃)₂+ H₂SO₄ (k có p/ư xảy ra)

Al₂(SO₄)₃+ H₂SO₄ (k có p/ư xảy ra)

Mg(OH)₂ + 2HCl \(\rightarrow\) MgCl₂ + H₂O

Al₂(SO₄)₃ + HCl ko pư

MgO + H₂SO₄ \(\rightarrow\) MgSO₄ + H₂O

MgCO₃ + H₂SO₄ \(\rightarrow\) MgSO₄ + CO₂ + H₂O

Mg(NO₃)₂ + H₂SO₄ \(\rightarrow\) MgSO₄ + 2HNO₃

Al₂(SO₄)₃ + H₂SO₄ ko pư

$\rm u)S + 2HNO_3 \rightarrow H_2SO_4 + 2NO \uparrow$

$\rm v)3Ba(NO_3)_2 + Al_2(SO_4)_3 \rightarrow 3BaSO_4 \downarrow + 2Al(NO_3)_3$
$\rm w)3Ba(OH)_2 + P_2O_5 \rightarrow Ba_3(PO_4)_3 \downarrow + 3H_2O$
$\rm x)2Fe_2O_3 + 3C \xrightarrow{t^o} 4Fe + 3CO_2 \uparrow$

a) \(K_2O+H_2O->2KOH\)

b) \(2Fe+3Cl_2->2FeCl_3\)

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

d) \(4FeS_2+11O_2->2Fe_2O_3+8SO_2\)

e)\(2Al+6HCl->2AlCl_3+3H_2\)

f) \(2KClO_3->KCl+3O_2\)

g) \(4P+5O_2->2P_2O_5\)

h) \(3Fe+2O_2->Fe_3O_4\)

i) \(2Al+3CuSO_4->Al_2\left(SO_4\right)_3+3Cu\)

j) \(2K+2H_2O->2KOH+H_2\)