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Carbonic acid, which is a weak acid, forms when rainwater and carbon dioxide in the air react with one another. When carbonic acid comes into contact with limestone or calcium carbonate, it can cause it to dissolve over a long period of time. In nature, this reaction leads to the formation of caves.
How does sulfuric acid react with limestone? It forms calcium sulphate, water and carbon dioxide which is an exothermic reaction (gives off heat). Limestone is soluble, which means that the water produced from the reactiâ¦on will dissolve and crumble the limestone. This reaction is also an example of acid rain. 4 people found this useful.