The cross product satisfies the general identity. (7). Note that is not a usual polar vector, but has slightly different transformation properties and is therefore a so-called pseudovector (Arfken 1985, pp. 22-23). Jeffreys and Jeffreys (1988) use the notation to denote the cross product.
Six Most Abundant Elements Dissolved in Ocean Water. Sodium chloride is the prevalent ionic compound found in seawater, accounting for about 85 percent of the dissolved salt. Sodium chloride is better known as common table salt. The salty taste of ocean water is due to the presence of sodium chloride in the water. When measuring the concentration of salt ions in seawater, the ratio of the six abundant ions remains constant. In other words, if you dried up all the water in the ocean, each remaining pile of salt, regardless its location in the world, would contain about 55.03 percent chloride, 30.59 percent sodium.
Two of the most prevalant ions in seawater are chloride and sodium. Together, they make up over 90 percent of all dissolved ions in the ocean. The concentration of salt in seawater (salinity) is about 35 parts per thousand.