When surface water dissolves carbon dioxide, carbonic acid (H2CO3) is formed. When the water moves underground through limestone formations, the limestone dissolves and caves are sometimes produced.

CaCO3(s) + H2CO3(aq) Ca(HCO3)2(aq)

What mass of limestone must have dissolved if 1.98 1010 kg of calcium hydrogen carbonate was produced?

1 answer

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