OCS 1005 Chapter : Ocean Chemistry
15 Mar 2019
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1) you should know what an ionic bond is. From when water enters and is completely mixed with all the world"s oceans. Nitrogen: most abundant dissolved has: used by living organisms to build proteins, atmospheric n must be "fixed" by bacteria to be biologically available, oxygen: second most abundant dissolved has. Source is photosynthetic activity by marine plants and plankton and diffusion from the atmosphere: you should know how temperature affects the solubility of gases. The correct answer is: solubility increases as temperature decreases. Colder water dissolves gases more readily: you should know why water hold more carbon dioxide than other gases, colder water dissolves gases more readily. The correct answer is: most of the carbon is stored in ocean sediments. carbonic acid combines with calcium, producing calcium carbonate. The ocean is basic: why is seawater basic? b/c co2 dissolved can exist in different forms, bicarbonate, carbonate, etc, when too basic, tendency for carbonic acid to disassociate.
