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Date: 13-3-2019
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Date: 28-10-2018
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Date: 26-11-2018
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Calcium carbonate is important in the formation of cave stalactites and stalagmites. This reaction allows calcium carbonate to be dissolved into solution as calcium bicarbonate.
The reverse reaction then allows the solution to become solid calcium carbonate once again, forming spikes of limestone in caves as the calcium bicarbonate solution drips vertically for several millennia.
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