Is Salt Water Homogeneous or Heterogeneous? 2012-08-08. HCl NaOH. The one-word saltwater is an adjective that describes salty bodies of water, the water of such bodies, and the life that lives in such bodies. water sodium chloride. There are situations wherein salt water can be homogeneous as well as a heterogeneous mixture. Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. So this depends on the concentration of the mixture. Contents. By definition, compounds composed of a salt and water combined in definite proportions are known as: e. hydrates. The two-word salt water is correct in all other uses.It’s a noun phrase, with the adjective salt modifying the noun water. 2020-11-15. Component Compounds: CID 5360545 (Sodium) CID 313 (Hydrochloric acid) CID 962 (Water) Dates: Modify . Seawater is a complex mixture of 96.5 percent water, 2.5 percent salts, and smaller amounts of other substances, including dissolved inorganic and organic materials, particulates, and a few atmospheric gases. The reactant (sodium chloride, or NaCl) is different from the products (sodium cation and chlorine anion). NaCl water. B. Find out more. The salt and water molecules do not combine to form new molecules, but only “mix” together while still retaining their identities. Seawater, water that makes up the oceans and seas, covering more than 70 percent of Earth’s surface. Therefore, dissolving salt in water is a chemical change. The question arises whether the saltwater is homogeneous or heterogeneous. A mixture, however, is made up of different compounds and/or elements. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Salt water is a MIXTURE; it contains the COMPOUNDS H2O (water) and NaCl (salt). 2 Names and Identifiers Expand this section. Adhesion/cohesion Saltwater is a basic mixture of salt (NaCl) and water (H2O). Once this happens, the salt is dissolved, resulting in a homogeneous solution. When salt is added to water to make saltwater, it becomes a mixture. Thus, any ionic compound that is soluble in water would experience a chemical change. Similar distinctions apply to freshwater and fresh water. 1 Structures Expand this section. Water and salt contain the ELEMENT hydrogen, oxygen, sodium, and chlorine. sodium chloride water. Create .