Question

which property describes a mixture? it cannot be separated by physical methods. it has a single chemical composition. it cannot have more than one state of matter. it cannot be described by a chemical symbol or formula.

Explanation:

A mixture is composed of two or more substances that are not chemically combined. Each substance in the mixture retains its own chemical properties. Since it is a combination of different substances and not a pure - substance, it cannot be described by a single chemical symbol or formula. Mixtures can be separated by physical methods (like filtration, distillation etc.), can have multiple chemical compositions, and can have more than one state of matter (e.g., a mixture of sand and water has a solid and a liquid state).

Answer:

It cannot be described by a chemical symbol or formula.