Classification of Matter - Final Exam

Front

What is a heterogeneous mixture?

Back

A mixture in which different materials are unevenly distributed and can be easily identified, such as mixed nuts or dry soup mix.

Front

What is a suspension?

Back

A mixture in which particles can be seen and settle out over time, such as muddy water.

Front

Define a chemical property.

Back

A property or behavior of a substance that undergoes a chemical change or reaction.

Front

What is the definition of a liquid?

Back

A state of matter with a definite volume but an indefinite shape.

Front

What does the law of conservation of mass state?

Back

The mass of all substances present before a chemical change equals the mass of all the substances that remain after the change.

Front

What is a homogeneous mixture?

Back

A mixture in which the composition is uniform throughout, such as saltwater.

Front

Define a solution.

Back

A homogeneous mixture where one substance (solute) is dissolved in another (solvent).

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form or appearance of a substance without changing its composition, while a chemical change results in the formation of new substances.

Front

What is an example of a physical property?

Back

Color, odor, density, melting point, and boiling point are examples of physical properties.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.