Lần lượt nè

4P+5O2--->2P2O5

S+O2--->SO2

2SO2+O2--->2SO3

2Cu+O2--->2CuO

3Fe+2O2--->Fe3O4

4Na+O2-->2Na2O

C+O2-->CO2

câu 1

2KClO3 -> 2KCl + 3O2

Zn + H2SO4 -> ZnSO4 + H2

Cu + O2 -> 2CuO

CuO + H2 -> Cu + H2

a) - Ag

Ag2O + CO -to-> Ag + CO2

3AgNO3 + Al --> Al(NO3)3 + 3Ag

2AgCl-to phòng-> 2Ag + Cl2

FeCl2 + 2AgNO3 --> 2AgCl + Ag + Fe(NO3)3

Fe(NO3)2 + AgNO3 --> Fe(NO3)3 + Ag

Ag2O + C6H12O6 -NH3-> 2Ag + C6H12O7

Ag2S + O2 -to-> 2Ag + SO2

- Fe

FeCl2 -đpdd-> Fe + Cl2

FeO + H2 -to-> Fe + CO2

2Al + 3FeSO4 --> Al2(SO4)3 + 3Fe

Fe2(SO4)3 + H2O -đpdd-> 2Fe + 3H2SO4 + 3/2O2

FeS-to, chân không-> Fe + S

FeCl2 + H2 \(\underrightarrow{>500^oC}\) Fe + 2HCl

4FeO \(\underrightarrow{500\rightarrow700^oC}\)Fe + Fe3O4

- Mg

MgCl2 -đpnc-> Mg + Cl2

MgO +C \(\underrightarrow{2000^oC}\)Mg + CO2

2Na + MgCl2 --> Mg + 2NaCl

2CaO + 2MgO + FeSi \(\underrightarrow{1500^oC}\)Fe + 2Mg + Ca2SiO4

Mg3N2 \(\underrightarrow{700\rightarrow1500^oC}\)3Mg + N2

2K + MgBr --> 2KBr + Mg

MgO + Be \(\underrightarrow{1075^oC}\)Mg + BeO

b)
2Fe + 3Cl2 -to-> 2FeCl3

2FeCl2 + Cl2 --> 2FeCl3

6FeSO4 + 3Cl2 --> 2Fe2(SO4)3 + 2FeCl3

Fe2O3 + 6HCl --> 2FeCl3 + 3H2O

3FeCl2 + KNO3 + 4HCl -to-> FeCl3 + NO + KCl + 2H2O

3BaCl2 + Fe2)SO4)3 --> 2FeCl3 + 3BaSO4

Fe(OH)3 + 3HCl --> FeCl3 + 3H2O

9Fe(NO3)2 + 12HCl --> 5Fe(NO3)3 + 4FeCl3 + 3NO + 6H2O

4FeCl2 + 4HCl + O2 --> 4FeCl3 + 2H2O

3FeCl2 + 4HNO3 --> Fe(NO3)3 + 2FeCl3 + NO + 2H2O

c)

C2H5OH + O2 -mg-> CH3COOH + H2O

2CH3CHO + O2 -to, Mn²⁺-> 2CH3COOH

2C4H10 + 5O2 -to, Mn²⁺-> 4CH3COOH + 2H2O

(CH3COO)2Ca + H2SO4 --> CaSO4 + 2CH3COOH

CH3COOC2H5 + H2O <-H⁺,to-> C2H5OH + CH3COOH

CH3COONa + HCl --> CH3COOH + NaCl

Các biện pháp

- Tăng lượng SO₂ và O₂

- Tăng áp suất phản ứng đến vừa đủ

:((( làm sao viết pứ trùng hợp đây

a/ (C₆H₁₀O₅)_n + nH₂O => nC₆H₁₂O₆

C₆H₁₂O₆ => (t^o + men rượu) 2CO₂ + 2C₂H₅OH

C₂H₅OH + O₂ => (men giấm) CH3COOH + H2O

C2H5OH + CH3COOH => CH3COOC2H5 + H2O (xt: t^o + h+<h2so4>)

b/ CaCO₃ => (t^o) CaO + CO2

CaO + 3C => (t^o) CaC2 + CO

CaC2 + 2H2O => Ca(OH)2 + C2H2

C2H2 + H2 => (t^o, Pd) C2H4

nCH2=CH2 => (t^o, xt, áp suất) (CH2-CH2)_n P.E

* Điều chế CO₂

1) CaCO₃ \(\underrightarrow{to}\) CaO + CO₂↑

2) 2CO + O₂ \(\underrightarrow{to}\) 2CO₂↑

3) C + O₂ \(\underrightarrow{to}\) CO₂↑

4) Na₂CO₃ + 2HCl → 2NaCl + CO₂↑ + H₂O

5) NaHCO₃ + HCl → NaCl + CO₂↑ + H₂O

6) Ca(HCO₃)₂ \(\underrightarrow{to}\) CaCO₃↓ + CO₂↑ + H₂O

7) Na₂CO₃ + 2NaHSO₄ → 2Na₂SO₄ + CO₂↑ + H₂O

8) NaHCO₃ + NaHSO₄ → Na₂SO₄ + CO₂↑ + H₂O

* Điều chế Cl₂

1) MnO₂ + 4HCl → MnCl₂ + Cl₂↑ + 2H₂O

2) 2KMnO₄ + 16HCl → 2KCl + 2MnCl₂ + 5Cl₂↑ + 8H₂O

3) 2NaCl + 2H₂O \(\xrightarrow[màngngăn]{điệnphân}\) 2NaOH + Cl₂ + H₂

4) KClO₃ + 6HCl → KCl + 3Cl₂ + 3H₂O

5) K₂Cr₂O₇ + 14HCl → 2KCl + 2CrCl₃ + 3Cl₂ + 7H₂O

6) CaOCl₂ + 2HCl → CaCl₂ + Cl₂ + H₂O

CO2 :

C + O2 -to-> CO2

CO + 1/2O2 -to-> CO2

CuO + CO -to-> Cu + CO2

Na2CO3 + 2HCl --> NaCl + CO2 + H2O

NaHCO3 + HCl --> NaCl + CO2 + H2O

CaCO3 -to-> CaO + CO2

Ca(HCO3)2 -to-> CaCO3 + CO2 + H2O

CH4 + 2O2 -to-> CO2 + 2H2O

- Cl2 :

NaCl + H2O -đpcmn-> NaOH + H2 + Cl2

2KMnO4 + 16HCl -to-> 2KCl + 2MnCl2 + 5Cl2+ 8H2O

2HCl -đpdd-> H2 + Cl2

MnO2 + 4HCl -to-> MnCl2 + Cl2 + H2O

H2O + Cl2 <--> HCl + HClO

2AgCl -as-> Ag + 1/2Cl2

a)

$2Na + 2H_2O \to 2NaOH + H_2$
$Na_2O + H_2O \to 2NaOH$
$Na_2CO_3 + Ca(OH)_2 \to CaCO_3 + 2NaOH$

$BaO + H_2O \to Ba(OH)_2$
$Ba(OH)_2 + Na_2CO_3 \to BaCO_3 + 2NaOH$

b)

$CuO + 2HCl \to CuCl_2 + H_2O$
$CuCl_2 + 2NaOH \to Cu(OH)_2 + 2NaCl$
$CuCl_2 + Ca(OH)_2 \to Cu(OH)_2 + CaCl_2$
$CuSO_4 + 2NaOH \to Cu(OH)_2 + Na_2SO_4$
$CuSO_4 + Ca(OH)_2 \to CaSO_4 + Cu(OH)_2$
$Cu(NO_3)_2 + 2NaOH \to Cu(OH)_2 + 2NaNO_3$
$Cu(NO_3)_2 + Ca(OH)_2 \to Ca(NO_3)_2 + Cu(OH)_2$

a)

b)

\(S+H_2\underrightarrow{t^o}H_2S\)

\(2H_2S+3O_2\underrightarrow{t^o}2SO_2+2H_2O\)

\(2SO_2+O_2\underrightarrow{t^o}2SO_3\)

\(SO_3+H_2O\rightarrow H_2SO_4\)

a) S + O₂ --t^o--> SO₂

2SO₂ + O₂ --t^o,V₂O₅--> 2SO₃

SO₃ + H₂O --> H₂SO₄

b)

C + O₂ --t^o--> CO₂

Ca(OH)₂ + CO₂ --> CaCO₃ + H₂O

CaCO₃ --t^o--> CaO + CO₂

CO₂ + C --t^o--> 2CO

a.\(S+O_2\rightarrow\left(t^o\right)SO_2\)

\(2SO_2+O_2\rightarrow\left(t^o,V_2O_5\right)2SO_3\)

\(SO_3+H_2O\rightarrow H_2SO_4\)

b.\(CO_2+CaO\rightarrow CaCO_3\)

\(CaCO_3\rightarrow\left(t^o\right)CaO+CO_2\)

\(C+CO_2\rightarrow\left(t^o\right)2CO\)