Bicarbonate is a salt of carbonic acid, commonly known as baking powder or baking soda. The hydrogen reacts with bicarbonate ...

A hydrogen atom from the carbonic acid bonds to the carbonate ion in ocean water and creates a bicarbonate ion (HCO-3) which the shell-making organisms can’t use.

Carbon dioxide dissolves in (and reacts with) water, forming carbonic acid. As this acid forms, it breaks down (dissociates) into a hydrogen ion and a bicarbonate ion ... we will be creating several ...