CO2--->CaCO3--->Ca(HCO3)2--->CO2--->C--->CO--->CO2
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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
a /
2C+ O2 -t--> 2CO
2CO+ O2 -t--> 2CO2
CO2 + CaO---> CaCO3
CaCO3 -t--> CaO + CO2
CaO+ H2O --> Ca(OH)2
Ca(OH)2 + H2CO3 --> Ca(HCO3)2
Ca(HCO3) + Ca(OH)2 ---> CaCO3 + H2O
![](https://rs.olm.vn/images/avt/0.png?1311)
\(1,\left(-C_6H_{10}O_5-\right)+nH_2O\underrightarrow{axit}nC_6H_{12}O_6\\ C_6H_{12}O_6\underrightarrow{\text{men rượu}}2C_2H_5OH+2CO_2\uparrow\\ C_2H_5OH+O_2\underrightarrow{\text{men giấm}}CH_3COOH+H_2O\\ C_2H_5OH+CH_3COOH\xrightarrow[t^o]{H_2SO_{4\left(đặc\right)}}CH_3COOC_2H_5+H_2O\\ CH_3COOC_2H_5+NaOH\rightarrow CH_3COONa+C_2H_5OH\)
\(2,CO_2+NaOH\rightarrow NaHCO_3\\ NaHCO_3+NaOH\rightarrow Na_2CO_3+H_2O\\ Na_2CO_3+2HCl\rightarrow2NaCl+CO_2\uparrow+H_2O\\ CO_2+CaCO_3+H_2O\rightarrow Ca\left(HCO_3\right)_2\\ Ca\left(HCO_3\right)_2+Ca\left(OH\right)_2\rightarrow2CaCO_3\downarrow+2H_2O\\ CaCO_3+CO_2+H_2O\rightarrow Ca\left(HCO_3\right)_2\\ Ca\left(HCO_3\right)_2+2HCl\rightarrow CaCl_2+2CO_2\uparrow+2H_2O\)
\(CaCl_2+Ag_2SO_4\rightarrow CaSO_4\downarrow+2AgCl\downarrow\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Đáp án: A
Xét tỉ lệ: \(\dfrac{n_{CO_2}}{n_{Ca\left(OH\right)_2}}=\dfrac{1}{1}=1\)
→ Muối tạo thành là CaCO3.
Bạn tham khảo nhé!
![](https://rs.olm.vn/images/avt/0.png?1311)
CO2 + 2H2 ==> C + 2H2O
2C + CO2 => 2CO
2CO + O2 ==> 2CO2
CO2 + Ca(OH)2 => CaCO3 + H2O
CaCO3 + CO2 + H2O ==> Ca(HCO3)2
Ca(HCO3)2==>CaCO3 + CO2 + H2O
![](https://rs.olm.vn/images/avt/0.png?1311)
CO2 + CaO - to-> CaCO3
CaCO3 + CO2 + H2O => Ca(HCO3)2
Ca(HCO3)2 -to-> CaCO3 + CO2 + H2O
CO2 + 2Mg -to-> 2MgO + C
C + 1/2O2 -to-> CO
CO + 1/2O2 -to-> CO2
\(CO_2+CaO\rightarrow CaCO_3\)
\(CaCO_3+CO_2+H_2O\rightarrow Ca\left(HCO_3\right)_2\)
\(Ca\left(HCO_3\right)_2\underrightarrow{t^o}CaCO_3+CO_2+H_2O\)
\(CO_2+2H_2\underrightarrow{t^o}C+2H_2O\)
\(C+CO_2⇌2CO\)
\(2CO+O_2\underrightarrow{t^o}2CO_2\)