Classification and Properties of Matter

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded and can be separated by physical means.

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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 compound?

Back

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

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.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout, meaning the different components are not distinguishable.

Front

What is a heterogeneous mixture?

Back

A mixture that does not have a uniform composition and the different components can be seen and separated.

Front

What is an example of a physical change?

Back

Melting ice into water.

Front

What is an example of a chemical change?

Back

Rust forming on iron.

Front

What happens during a chemical reaction?

Back

The bonds between atoms in reactants break and new bonds form to create products.