Pure Substances and Mixtures Flashcard

Front

What is a pure substance?

Back

A pure substance is a material that has a constant composition and consistent properties throughout. It cannot be separated into simpler substances by physical methods.

Front

Can a pure substance be broken down into simpler matter using physical methods?

Back

No, a pure substance cannot be broken down into simpler matter using physical methods.

Front

What is a mixture?

Back

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

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is one in which the components are not uniformly distributed, and the individual parts can be seen.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is one in which the components are evenly distributed and not easily distinguishable.

Front

Give an example of a homogeneous mixture.

Back

Water is an example of a homogeneous mixture.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion, which an object possesses due to its movement.

Front

What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed or measured without changing its chemical composition.

Front

What are some examples of physical properties?

Back

Examples of physical properties include color, odor, melting point, boiling point, density, and state of matter.

Front

How can mixtures be separated?

Back

Mixtures can be separated using physical methods such as filtration, distillation, and chromatography.