About calcium carbonate

2009-10-10 7:24 am
Why calcium carbonate is insoluble ?

回答 (2)

2009-10-10 8:33 pm
✔ 最佳答案
It is the physical property of CaCO3 , it cannot ionize in water to form soluble ions . Pls refer to its solubility in water , then going further you need to understand the bond energy, .....something about physical chem. But it can be dissolved in acid solution.
CaCO3+CO2+H2O------>Ca(HCO3)2 so when more CO2 in water , the water is slightly weak acid because of the present of carbonic acid.
I donot know what common solvents can dissolve CaCO3 . It is misleading to use polar or nonpolar to explain the solubility of CaCO3 in water.
2009-10-10 7:32 am
Calicum carbonate is a kind of giant ionic structure with ionic bond. It is usually soluble in aqueous solvents.However, it is usually insoluble in non-polar solvents. :)
In this case, because the solvent is non polar, calcium carbonate becomes insoluble.


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