Why is salt water classified as a mixture?

Question

A. because water contains a mix of both oxygen atoms and hydrogen atoms
B. because sodium chloride molecules chemically bond with water molecules to form salt water
C. because both water and salt contain small amounts of other substances that combine within the solution
D. because the chemical and physical properties of sodium chloride and water stay unchanged within the solution

Answer 1

C. because both water and salt contain small amounts of other substances that combine within the solution

Salt water is classified as a mixture because it is a combination of water and salt, both of which contain small amounts of other substances that create a solution when combined. The salt molecules do not chemically bond with the water molecules, and the chemical and physical properties of sodium chloride and water remain unchanged within the solution.