Before revision: The actual reaction is more complicated and involves the bicarbonate ion (HCO) that forms when CO2 reacts with water at seawater pH: Ca^2+ + 2 HCO3- -> CaCO3_v + CO2 + H2O At seawater pH, most of the CO2 is immediately converted back into .
After revision: dissolvedThe actual reaction is more complicated and involves the bicarbonate ion (HCO) that forms when CO2 reacts with water at seawater pH: Ca^2+ + 2 HCO3- -> CaCO3_v + CO2 + H2O At seawater pH, most of the CO2 is immediately converted back into .