When a substance is in a mixture, each substance keeps its own individual properties. This means that the substances don't chemically change or combine, they simply blend together physically.

Here's a breakdown:

* Chemical Properties: Things like flammability, reactivity, and how a substance interacts with other chemicals remain the same.

* Physical Properties: Things like color, texture, density, and melting/boiling point also remain the same.

Here's an example:

Think of a salad. It's a mixture of lettuce, tomatoes, cucumbers, and maybe some other ingredients. Each of these ingredients keeps its own properties:

* Lettuce: Green, leafy, crunchy

* Tomatoes: Red, juicy, slightly acidic

* Cucumbers: Green, smooth, watery

The salad is just a combination of these ingredients, not a new substance formed by their reaction.

Key points:

* Mixtures can be separated by physical means, like filtration or evaporation.

* The components of a mixture can be present in varying proportions.

Let me know if you have any other questions!