A⟶ΔB( oxide )+CO2B+H2O⟶CC+CO2⟶A(milky)C+NH4Cl⟶ΔD( gas )D+H2O+CO2⟶EE+NaCl⟶FF⟶ΔNa2CO3+CO2+H2OB and C are:D and E and F are:

CaCO3(A)→ΔCaO(B)+CO2 CaO(B)+H2O→ Ca(OH)2(C) Ca(OH)2(C)+CO2→ CaCO3(A) Ca(OH)2(C)+NH4Cl→ΔNH3(D) NH3(D)+H2O+CO2→ NH4HCO3(E) NH4HCO3(E)+NaCl→ NaHCO3(F) NaHCO3(F)→ΔNa2CO3+CO2+H2O CaCO3(A)→ΔCaO(B)+CO2 CaO(B)+H2O→ Ca(OH)2(C) Ca(OH)2(C)+CO2→ CaCO3(A) Ca(OH)2(C)+NH4Cl→ΔNH3(D) NH3(D)+H2O+CO2→ NH4HCO3(E) NH4HCO3(E)+NaCl→ NaHCO3(F) NaHCO3(F)→ΔNa2CO3+CO2+H2O