Which statement is true about a mixture?

A mixture consists of multiple components that retain their individual properties, making it a significant concept in chemistry. This characteristic means that the components do not undergo any chemical changes when they are combined, and their physical and chemical properties remain unchanged. For example, in a salad, the lettuce, tomatoes, and cucumbers retain their distinct flavors and textures, emphasizing that the identity of each component remains intact within the mixture.

In contrast to this, a mixture is not defined by having only one type of particle, which is characteristic of a pure substance. While chemical reactions can happen within a mixture under certain conditions, it’s not a defining feature of all mixtures, as many mixtures can exist without any interaction between their components. Furthermore, a mixture does not have an unchanging composition—its ratio of components can vary—further highlighting the complexity and variability of mixtures compared to pure substances.