Mixtures Review

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded together.

Front

What is a physical change?

Back

A physical change is 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 chemical change is a change that results in the formation of new chemical substances.

Front

Give an example of a physical change.

Back

Dissolving sugar in water is an example of a physical change.

Front

Give an example of a chemical change.

Back

Rusting of iron is an example of a chemical change.

Front

What happens to the substances in a physical change?

Back

In a physical change, the substances retain their original properties and can often be separated back into their original form.

Front

What happens to the substances in a chemical change?

Back

In a chemical change, the original substances are transformed into new substances with different properties.

Front

What is an indicator of a chemical change?

Back

An indicator of a chemical change can include color change, gas production, or the formation of a precipitate.

Front

What is an example of a mixture?

Back

Salad is an example of a mixture, as it contains various ingredients that are not chemically combined.

Front

What is the difference between a homogeneous mixture and a heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has visibly different substances or phases.