Why salt is a pure substance and salt solution is considered to bea
mixture?
Answers
Answer:
Salt (NaCl) is a pure substance because it contains two elements in a fixed ratio and has only one component. On the other hand, salt solution is a mixture, as it has two different components- salt and water.
Explanation:
Ordinary table salt is called sodium chloride. It is considered a pure substance because it has a uniform and definite composition. All samples of sodium chloride are chemically identical. ... Salt easily dissolves in water, but salt water cannot be classified as a pure substance because its composition can vary.
Seawater is a mixture of many different substances. Some of these substances can be observed when the water in seawater evaporates and leaves behind salt. Water, H2O, is a pure substance, a compound made of hydrogen and oxygen.