a. SO 2 + Ca ( OH ) 2 → 1 : 1 CaSO 3 + H 2 O

b.  Ba ( HCO 3 ) 2 + NaOH → 1 : 1 BaCO 3 + NaHCO 3 + H 2 O

c .   2 P + 3 Cl 2 → 2 : 3 2 PCl 3 d .   Ca 3 ( PO 4 ) 2 + 2 H 2 SO 4 → 1 : 2 2 CaSO 4 +   Ca ( H 2 PO 4 ) 2 e .   H 3 PO 4 + 3 KOH → 1 : 3 K 3 PO 4 + 3 H 2 O g .   CO 2 + NaOH → 1 : 1 NaHCO 3

\(C_2H_4+H_2O\underrightarrow{H^+,t^o}C_2H_5OH\)

\(C_2H_5OH+O_2\underrightarrow{men.giấm}CH_3COOH+H_2O\)

\(CH_3COOH+C_2H_5OH\underrightarrow{H_2SO_{4\left(đ\right)},t^o}CH_3COOC_2H_5+H_2O\)

\(CH_3COOC_2H_5+NaOH\underrightarrow{t^o}CH_3COONa+C_2H_5OH\)

 C₂H₄ → C₂H₅OH → CH₃COOH → CH₃COOC₂H₅ → C₂H₅OH

(1)   C₂H₄ + H₂O \(\underrightarrow{axit}\) C₂H₅OH

(2)  C₂H₅OH  + O₂  \(\xrightarrow[25^0-30^0C]{mengiam}\) CH₃COOH + H₂O

(3)   CH₃COOH + C₂H₅OH → CH₃COOC₂H₅ + H₂O

(4) CH₃COOC₂H₅ + NaOH \(\underrightarrow{t^0}\) CH₃COONa + C₂H₅OH

a.

\(1.2SO_2+O_2->2SO_3\)

\(2.H_2O+SO_3->H_2SO_4\)

\(3.CuO+H_2SO_4->CuSO_4+H_2O\)

\(4.Fe+CuSO_4->FeSO_4+Cu\)

\(5.FeSO_4+BaCl_2->BaSO_4+FeCl_2\)

a.

\(\left(1\right)2SO_2+O_2\xrightarrow[V_2O_5]{t^o}2SO_3\)

\(\left(2\right)SO_3+H_2O\xrightarrow[]{}H_2SO_4\)

\(\left(3\right)H_2SO_4+CuO\xrightarrow[]{}CuSO_4+H_2O\)

\(\left(4\right)Fe+CuSO_4\xrightarrow[]{}Cu\downarrow+FeSO_4\)

\(\left(5\right)FeSO_4+BaCl_2\xrightarrow[]{}BaSO_4\downarrow+FeCl_2\)

b.

\(\left(1\right)Fe_2O_3+3H_2SO_4\xrightarrow[]{}Fe_2\left(SO_4\right)_3+3H_2O\)

\(\left(2\right)Fe_2\left(SO_4\right)_3+6NaOH\xrightarrow[]{}2Fe\left(OH\right)_3+3Na_2SO_4\)

\(\left(3\right)Fe\left(OH\right)_3+3HCl\xrightarrow[]{}FeCl_3+3H_2O\)

\(\left(4\right)FeCl_3+3HNO_3\xrightarrow[]{}Fe\left(NO_3\right)_3+3HCl\)

b. 

\(Fe_2O_3+3H_2SO_4->Fe_2\left(SO_4\right)_3+3H_2O\)

\(Fe_2\left(SO_4\right)_3+3NaOH->Fe\left(OH\right)_3+3Na_2SO_4\)

\(Fe\left(OH\right)_3+HCl->FeCl_3+H_2O\)

\(FeCl_3+3AgNO_3->Fe\left(NO_3\right)_3+3AgCl\)

\(\left(-C_6H_{10}O_5-\right)_n+nH_2O\rightarrow nC_6H_{12}O_6\\ C_6H_{12}O_6\underrightarrow{\text{men rượu}}2C_2H_5OH+2CO_2\\ C_2H_5OH+O_2\underrightarrow{\text{men giấm}}CH_3COOH+H_2O\\ CH_3COOH+C_2H_5OH\xrightarrow[t^o]{H_2SO_{4\left(đ\right)}}CH_3COOC_2H_5+H_2O\)

1)nH2O+(C6H10O5)n→nC6H12O6
(2)C6H12O6lm→2C2H5OH+2CO2
(3)C2H5OH+O2to,xt→CH3COOH+H2O
(4)C2H5OH+HCOOH→H2O+HCOOC2H5
 

\(\left(-C_6H_{10}O_5-\right)n+nH_2O\underrightarrow{t^o}nC_6H_{12}O_6\)

\(C_6H_{12}O_6\underrightarrow{men.rượu}2C_2H_5OH+2CO_2\uparrow\)

\(C_2H_5OH+O_2\underrightarrow{men.giấm}CH_3COOH+H_2O\)

\(CH_3COOH+C_2H_5OH\underrightarrow{t^o}CH_3COOC_2H_5+H_2O\)

$4Na + O_2 \xrightarrow{t^o} 2Na_2O$
$Na_2O + H_2O \to 2NaOH$
$2NaOH + CO_2 \to Na_2CO_3 + H_2O$
$Na_2CO_3 + 2HCl\to 2NaCl + CO_2 + H_2O$
$CO_2 + Ca(OH)_2 \to CaCO_3 + H_2O$
$CaCO_3 + 2HCl \to CaCl_2 + CO_2 + H_2O$

4Na+O2→2Na2O

Na2O+H2O→2NaOH

NaOH+CO2→Na2CO3

Na2CO3+CaCl2−to→CaO+CO2+2NaCl

CaO+2HCl→CaCl2+H2O

(1) \(2NaCl+2H_2O\underrightarrow{đpcmn}2NaOH+H_2+Cl_2\)

(2) \(2NaBr+Cl_2\rightarrow2NaCl+Br_2\)

(3) \(H_2+Br_2\underrightarrow{t^o}2HBr\)

(4) \(HBr+AgNO_3\rightarrow AgBr\downarrow+HNO_3\)