Carbonate mgco3, reacts with nitric acid, hno3, to form magnesium nitrate and carbonic acid. carbonic acid reacts to form water and carbon dioxide. which type of reaction does carbonic acid undergo ?

Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?