The periodic symbol or chemical formula for carbonated water is H2CO3. It is plain water into which carbon dioxide gas has been dissolved in carbonation.
Carbonated water is formed by adding two compound together: carbon dioxide (CO2) and water (H2O) to form H2CO3 - an unstable acid formed by dissolving carbon dioxide in water.
When carbon dioxide reacts with water a weak acid is formed. Carbon dioxide is present in exhaled breath. Observing a colour change using an acid-base indicator shows the reaction between carbon dioxide and water.
It is the basis of carbonated beverages and is related to the carbonate group of compounds. Its production in the body is catalyzed by carbonic anhydrase.
The elements are the basis for all matter. Learn the one and two letter symbols for the chemical elements of the periodic table using this handy list from ThoughtCo.com.