Elements, Compounds and Mixtures Review

Front

What is a mixture?

Back

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

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together in a fixed ratio.

Front

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

Back

A homogeneous mixture has a uniform composition throughout (e.g., saltwater), while a heterogeneous mixture has a non-uniform composition (e.g., salad).

Front

Can you give an example of a compound?

Back

Water (H2O) is an example of a compound, as it is made up of hydrogen and oxygen atoms chemically bonded together.

Front

What is a solution?

Back

A solution is a homogeneous mixture where one substance (the solute) is dissolved in another (the solvent), such as sugar in water.

Front

What are the components of granite?

Back

Granite is composed of minerals such as quartz, feldspar, and mica.

Front

How is ammonia classified?

Back

Ammonia (NH3) is classified as a compound because it is made up of nitrogen and hydrogen atoms chemically bonded together.

Front

What is the classification of granite?

Back

Granite is classified as a heterogeneous mixture because it contains different minerals that can be identified separately.

Front

What is the significance of atomic arrangements in substances?

Back

Atomic arrangements determine the properties of substances, including whether they are elements, compounds, or mixtures.