A mixture is best described as which of the following?

A mixture is best described as which of the following?

• A. A pure substance with fixed composition
• B. A substance containing only one element
• C. A compound formed by chemical bonding
• D. A combination of two or more substances that are not chemically combined

Answer: (D)

A mixture is a combination of two or more substances that are not chemically bound to each other, so each component keeps its own identity and properties. Because they’re not joined by chemical bonds, the components can be present in any proportion and can be separated by physical methods like filtration, distillation, or simple picking apart. This differs from pure substances, which have a fixed composition. An element is a pure substance consisting of only one type of atom, and a compound is made from two or more elements chemically bonded in a fixed ratio, with properties that are different from the elements that compose it. So the idea that a mixture is simply a blend of substances that aren’t chemically combined best captures what’s being described.

A mixture is a combination of two or more substances that are not chemically bound to each other, so each component keeps its own identity and properties. Because they’re not joined by chemical bonds, the components can be present in any proportion and can be separated by physical methods like filtration, distillation, or simple picking apart. This differs from pure substances, which have a fixed composition. An element is a pure substance consisting of only one type of atom, and a compound is made from two or more elements chemically bonded in a fixed ratio, with properties that are different from the elements that compose it. So the idea that a mixture is simply a blend of substances that aren’t chemically combined best captures what’s being described.