Because seawater has particles in it that can be filtered whereas distilled water is pure
compound
Distilled water in a compound.
Distilled water is a compound - H2O.
Seawater is neither a compound nor an element but a mixture including much dissolved solid and usually microorganisms as well.
Water (distilled or not) is a chemical compound - H2O.
Distilled water is a compound, H2O.it is a compound
Distilled water in a compound.
Water (distilled or not) is a compound with the chemical formula H2O.
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
Water is a compound. Seawater is a mixture containing salts as well as water.
If made from pure distilled water it is a compound. But usually it is a mixture.
Seawater may be considered a heterogeneous mixture because contain many insoluble materials.