Final answer:
A chemical mixture is a material composed of two or more substances that maintain their individual identities and can be either homogeneous or heterogeneous. Statement b is true, stating that it can be homogeneous or heterogeneous, while statements a, c, d, and e are incorrect.
Step-by-step explanation:
The statements a, b, and e regarding a chemical mixture are incorrect, whereas statement b is true. Here is a detailed explanation:
Remember that a homogeneous mixture has a uniform composition throughout, such as saltwater, while a heterogeneous mixture does not, such as sand and water.