1) Mineral acid 
Carbonic acid is the chemical compound with the chemical formula H2CO3 (equivalently OC(OH)2). It is also a name sometimes given to solutions of carbon dioxide in water (carbonated water), because such solutions contain small amounts of H2CO3. In physiology, carbonic acid is described as volatile acid or respiratory acid, because it is the only ac...
(from the article `cave`) ...derived from the overlying limestone near the bedrock/soil interface. Rainwater infiltrating through the soil absorbs carbon dioxide from the ... [4 related articles]
H2CO3 Molar mass: 62.02478
<chemical> Carbonic acid (h2c03). The hypothetical acid of carbon dioxide and water. It exists only in the form of its salts (carbonates), acid salts (hydrogen carbonates), amines (carbamic acid), and acid chlorides (carbonyl chloride). ... Chemical name: Carbonic acid ... (12 Dec 1998) ... 
(kahr-bon´ik) aqueous solution of carbon dioxide, H2CO3.
A weak acid (H2CO3).
A weak acid (H2CO3) that forms from the reaction of water and carbon dioxide. Most rain water is a v
Type: Term Pronunciation: kar-bon′ik as′id Definitions: 1. H2CO3, formed from H2O and CO2.
The weak acid H2CO3 formed by the dissolution of CO2 in water.
A weak acid.
[n] - a weak acid known only in solution
A weak acid formed by carbon dioxide dissolved in water. Symbol H2CO3
noun a weak acid known only in solution; formed when carbon dioxide combines with water