Properties and Composition of Matter

Front

What is a chemical property?

Back

A characteristic of a substance that can only be observed during a chemical reaction, such as flammability.

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What is an element?

Back

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

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances, such as baking cookies.

Front

What is matter?

Back

Anything that has mass and takes up space.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is density?

Back

The mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What is the difference between a physical and chemical property?

Back

Physical properties can be observed without changing the substance, while chemical properties can only be observed during a chemical reaction.

Front

What is an example of a physical change?

Back

Melting ice is a physical change because it changes from solid to liquid without altering its chemical composition.