Write the reaction equation: CaCL2 – CaCO3 – Ca (HCO3) 2 – CaCO3 – CaSIO3

1) CaCl2 + Na2CO3 = CaCO3 + 2 NaCl (calcium carbonate).

2) CaCO3 + H2CO3 = Ca (HCO3) 2 (calcium bicarbonate).

3) Ca (HCO3) 2 = CaCO3 + CO2 + H2O (conditions: temperature; calcium carbonate, carbon dioxide (carbon monoxide (4)).

4) CaCO3 + H2SiO3 = CaSiO3 + CO2 + H2O (calcium silicate, carbon dioxide (carbon monoxide (4)).



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