CaCO3 soluble?

[adizzle87]

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The solubility rules say no, since any carbonates are insoluble except for the "always soluble" cations. However I had a question on Kaplan, and it stated that CaCO3 can interact w/ HCl and that it was actually a salt of a weak acid. Because of that it is apparently soluble, but doesn't that go agaisnt the rules? Its my undedrstanding that only CaO and Ca(NO3)2 are soluble no?

 

[MaskItOrCasket]

those rules are not concrete, but as for the DAT... CaCO3 is not soluble in water. i highly doubt test makers will put a "u shoulda known that obscure fact in gchem" on the test. just stick to the basic rules n ull be set

 

[doc3232]

It's chalk...I don't think it would dissolve. But we do know HCO3 does, flows in the blood.