Exploring Mixtures

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What is a mixture?

A mixture is a combination of two or more substances where each substance retains its own chemical identity.

What is the difference between a homogeneous mixture and a heterogeneous mixture?

A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture does not.

Give two examples of mixtures.

Air (homogeneous) and salad (heterogeneous) are examples of mixtures.

How can mixtures be separated?

Mixtures can be separated by physical methods such as filtration, evaporation, or distillation.

Why is air considered a mixture and not a compound?

Air is considered a mixture because it is composed of different gases, each retaining its own properties, not chemically bonded together.