Substances Versus Mixtures

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded. Examples include salad, air, and soil.

Front

What is a substance?

Back

A substance is a form of matter that has a uniform and definite composition. Examples include water, oxygen, and gold.

Front

Is apple juice a mixture or a substance?

Back

Apple juice is a mixture because it contains various components, including water, sugars, and other substances.

Front

Is soil a mixture or a substance?

Back

Soil is a mixture because it consists of organic matter, minerals, gases, liquids, and organisms.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include hydrogen, carbon, and oxygen.

Front

Is carbon a mixture or a substance?

Back

Carbon is a substance because it is a pure element.

Front

What is a solution?

Back

A solution is a type of mixture where one substance is dissolved in another, such as saltwater.

Front

Can mixtures be separated?

Back

Yes, mixtures can be separated into their individual components by physical means, such as filtration or evaporation.

Front

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

Back

A homogeneous mixture has a uniform composition throughout (like saltwater), while a heterogeneous mixture has visibly different substances or phases (like a salad).

Front

What is an example of a homogeneous mixture?

Back

An example of a homogeneous mixture is vinegar, which has a consistent composition throughout.