Pure quartz sand and salt is are pure substances (single chemical compounds), Seawater is a mixture of substances.
Carbon is a pure substance with the chemical symbol "C"
Table salt is a pure substance. It is combined in such a way that it is uniform and definite in composition.
Both seawater and sand are substances. Solid, water or gas - each is a substance. Table salt could be called 'sandy' or 'like sand' in appearance and texture, but is made of different elements.
Salt water is a homogeneous mixture called a solution containing salt and water. Salt is the solute and water is the solvent. It is a mixture because the salt and water are not chemically combined and are not present in definite proportions.
Sulfur is a pure substance because it consists of only sulfur atoms and has a uniform chemical composition throughout. It is an element found on the periodic table with its own distinct properties.
No a table is not pure.
A solution.
Seawater is a mixture. It is a combination of salt and water that is a homogeneous mixture. An example of a pure substance is either pure salt or pure sugar.
Table salt is a pure substance. A pure substance is a substance has one type of molecule and one type of atom. Other pure substance are copper and liquid water.
Sodium (Na) is a pure substance, listed on the Periodic Table. Table salt however, is Sodium Chloride (NaCl), which is not a pure substance
Table salt is a pure substance. It is combined in such a way that it is uniform and definite in composition.
Carbon is a pure substance with the chemical symbol "C"
Rock salt contains all the minerals found in the seawater from which it formed. These will be many, but NaCl will be the main one.
by checking in the periodic table
sds
Table salt is a pure substance. It is combined in such a way that it is uniform and definite in composition.
Tin is a pure substance. It is element #50 on the periodic table.