Mik ko hiểu đề lắm, bn viết dễ hiểu hơn đi

1) 2SO2 + O2 → 2SO3 

2)  N2O5 + H2O → 2HNO3 

3)  Al2(SO4)3 + 6AgNO3 → 2Al(NO3)3 + 3Ag2SO4 

4)  Al2(SO4)3 + 6NaOH → 2Al(OH)3 + 3Na2SO4

5) CaO + CO2 → CaCO3 

6) CaO + H2O → Ca(OH)2 

7) CaCO3 + H2O + CO2 → Ca(HCO3)2 

8) 4Na + 2H3PO4 → 2Na2HPO4 + H2 

9) 6Na + 2H3PO4 → 2Na3PO4 + 3H2 

10) 2Na + 2H3PO4 → 2NaH2PO4 + H2

1) PbO + 2HCl --> PbCl₂ + H₂O

2) \(2SO_2+O_2\xrightarrow[V_2O_5]{t^o}2SO_3\)

3) 2CO + O₂ --t^o--> 2CO₂

4) \(Al_2\left(SO_4\right)_3+6AgNO_3\rightarrow2Al\left(NO_3\right)_3+3Ag_2SO_4\downarrow\)

5) \(Al_2\left(SO_4\right)_3+6NaOH\rightarrow2Al\left(OH\right)_3\downarrow+3Na_2SO_4\)

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

\(\begin{array}{l} 4Al+3O_2\xrightarrow{t^o} 2Al_2O_3\\ Al_2O_3+3H_2SO_4\to Al_2(SO_4)_3+3H_2O\\ Al_2(SO_4)_3+3BaCl_2\to 3BaSO_4\downarrow+2AlCl_3\\ AlCl_3+3NaOH\to Al(OH)_3\downarrow+3NaCl\\ Al(OH)_3+3HNO_3\to Al(NO_3)_3+3H_2O\\ 2Al(NO_3)_3+3Mg\to 3Mg(NO_3)_2+2Al\\ 2Al+3H_2SO_4\to Al_2(SO_4)_3+3H_2\uparrow\\ Al_2(SO_4)_3+6NaOH\to 2Al(OH)_3\downarrow+3Na_2SO_4\\ 2Al(OH)_3\xrightarrow{t^o} Al_2O_3+3H_2O\\ 2Al_2O_3\xrightarrow{\text{đpnc, Criolit}} 4Al+3O_2\uparrow\\ 2Al+2NaOH+2H_2O\to 2NaAlO_2+3H_2\uparrow\end{array}\)

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

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

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

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

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

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

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

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

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

a) 4NH₃ + 5O₂ -t^o-> 4NO + 6H₂O

4:5:4:6

b) S + 2HNO₃ --> H₂SO₄ + 2NO

1:2:1:2

c) 3Ba(NO₃)₂ + Al₂(SO₄)₃ --> 3BaSO₄\(\downarrow\) + 2Al(NO₃)₃

3:1:3:2

d) FeCl₃ + 3AgNO₃ --> Fe(NO₃)₃ + 3AgCl\(\downarrow\)

1:3:1:3

\(a.4NH_3+5O_2\rightarrow4NO+6H_2O\)   

 \(NH_3\div NO=4\div4=1\div1\)

\(b.S+2HNO_3\rightarrow H_2SO_4+2NO\) 

  \(HNO_3\div NO=2\div2=1\div1\)

\(c.2Ba\left(NO_3\right)_2+Al_2\left(SO_4\right)\rightarrow2BaSO_4+4NO\) 

\(Ba\left(NO_3\right)_2\div BaSO_4=2\div2=1\div1\)

\(d.FeCl_3+3AgNO_3\rightarrow Fe\left(NO_3\right)_3+3AgCl\) (ban sai de mik sua lai)

\(AgNO_3\div AgCl=3\div3=1\div1\)