Question

Ocean water contains all of the following elements except.

Answer 1

Ocean water contains all of the following elements except sodium, chlorine, carbon, and hydrogen.

Step-by-step explanation:

Ocean water contains all of the following elements except: sodium, chlorine, carbon, and hydrogen. These four elements are actually present in seawater in significant amounts and play important roles in the chemistry and biology of the ocean. For example, sodium and chlorine combine to form salt (sodium chloride), which is the primary dissolved solid in seawater. Carbon and hydrogen are fundamental elements in organic molecules that support life in the ocean.

Answer 2

Chemical and physical properties of seawater

The six most abundant ions of seawater are chloride (Cl−), sodium (Na+), sulfate (SO24−), magnesium (Mg2+), calcium (Ca2+), and potassium (K+). By weight these ions make up about 99 percent of all sea salts.