a,
\(C+O_2\underrightarrow{^{to}}CO_2\)
\(CO_2+Ca\left(OH\right)_2\rightarrow CaCO_3+H_2O\)
\(CaCO_3\underrightarrow{^{tp}}CO_2+CaO\)
\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)
b,
\(MnO_2+4HCl\rightarrow MnCl_2+Cl_2+2H_2O\)
\(Cl_2+H_2\underrightarrow{^{as}}2HCl\)
\(NaOH+HCl\rightarrow NaCl+H_2O\)
\(2NaCl\underrightarrow{^{đpnc}}2Na+Cl_2\)
\(2Fe+3Cl_2\underrightarrow{^{to}}2FeCl_3\)
\(FeCl_2+3KOH\rightarrow Fe\left(OH\right)_3+3KCl\)
\(2Fe\left(OH\right)_3\underrightarrow{^{to}}Fe_2O_3+3H_2O\)
\(a.C\underrightarrow{\left(1\right)}CO_2\underrightarrow{\left(2\right)}CaCO_3\underrightarrow{\left(3\right)}CaO\underrightarrow{\left(4\right)}Ca\left(OH\right)_2\)
\(\left(1\right)C+O_2\underrightarrow{t^o}CO_2\)
\(\left(2\right)CO_2+Ca\left(OH\right)_2\rightarrow CaCO_3+H_2O\)
\(\left(3\right)CaCO_3\underrightarrow{t^o}CaO+CO_2\)
\(\left(4\right)CaO+H_2O\rightarrow Ca\left(OH\right)_2\)
C+O2-->CO2
CO2+CaO-->CaCO3
CACO3-->CaO+CO2
CaO+H2O-->Ca(Oh)2
MnO2+HCl-->MnCl+Cl2+H2O
Cl2+H2o-->HCl+HClO
HCl+Na-->NaCl+H2
NaCl+H2O-->NaCl+Cl2+H2O
Cl2+Fe-->FeCl3
FeCl3+NaOH-->NaCl+Fe(OH)3
Fe(OH)3-->Fe2O3+H2O
a. Canxi cacbon?
\(b.MnO_2\underrightarrow{\left(1\right)}Cl_2\underrightarrow{\left(2\right)}HCl\underrightarrow{\left(3\right)}NaCl\underrightarrow{\left(4\right)}Cl_2\underrightarrow{\left(5\right)}FeCl_3\underrightarrow{\left(6\right)}Fe\left(OH\right)_3\underrightarrow{\left(7\right)}Fe_2O_3\)
\(\left(1\right)MnO_2+4HCl_{\left(\text{đ}\right)}\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)
\(\left(2\right)Cl_2+H_2O\rightarrow HCl+HClO\)
\(\left(3\right)Na_2SO_3+2HCl\rightarrow2NaCl+H_2O+SO_2\)
\(\left(4\right)2NaCl+2H_2O\xrightarrow[cmn]{dpdd}2NaOH+Cl_2+H_2\)
\(\left(5\right)Fe+\frac{3}{2}Cl_2\underrightarrow{t^o}FeCl_3\)
\(\left(6\right)FeCl_3+3NaOH\rightarrow3NaCl+Fe\left(OH\right)_3\)
\(\left(7\right)2Fe\left(OH\right)_3\underrightarrow{t^o}Fe_2O_3+3H_2O\)
