Because seawater has particles in it that can be filtered whereas distilled water is pure
Distilled water in a compound.
Water (distilled or not) is a chemical compound - H2O.
Water (distilled or not) is a compound with the chemical formula H2O.
Seawater is a mixture of different elements and compounds. It is primarily composed of water and contains dissolved salts, minerals, and other substances. So, seawater is not an element but a complex mixture of different compounds.
sodium is an element and also can be an ingredient of a compound. Sea water contains sodium(salt). They say rainwater is acidic, and if it is then the seawater also contains a form of acid, which is a compound to many types of solutions. Answer to your question: BOTH
Seawater may be considered a heterogeneous mixture because contain many insoluble materials.
Water is a compound - H2O.
Seawater is a mixture. It is composed of water, various dissolved salts and minerals, gases, and organic matter. These components can be physically separated through processes such as evaporation or filtration.
Distilled water is a compound, not a mixture, because it is just pure H2O.
Seawater is a mixture - a compound is a chemically bonded substance involving more than one element.
sds
Distilled (pure) water is a compound; it is composed solely of H2O molecules, with no other substances present.