Classification of Matter

Front

What is a Chemical Change?

Back

A process where a substance transforms into a new substance with different properties.

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What is a sign that a chemical reaction has occurred?

Back

Formation of a gas, change in color, or temperature change.

Front

What is a Mixture?

Back

A combination of two or more substances that can be separated by physical processes.

Front

What is a Pure Substance?

Back

A material made of only one type of particle, either an element or a compound.

Front

What is an Element?

Back

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

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What is a Compound?

Back

A substance formed when two or more elements chemically bond 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 Reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.

Front

What is a Phase Change?

Back

A transition of matter from one state (solid, liquid, gas) to another.

Front

What is Dissolving?

Back

The process of a substance (solute) becoming incorporated into another substance (solvent) to form a solution.