Elements, Compounds, and Mixtures Review

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each retains its own properties and can have varying ratios of components.

Front

What defines a pure substance?

Back

A pure substance has the same properties throughout and cannot be separated into simpler substances 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.

Front

What is a compound?

Back

A compound is a substance made of two or more types of atoms that are chemically bonded together.

Front

Can compounds be separated into their individual parts through physical means?

Back

No, compounds cannot be separated into their individual parts through physical means; they require chemical reactions.

Front

What is an example of an element found in the atmosphere?

Back

Ozone (O3) is an example of an element found in the atmosphere.

Front

What is the difference between a compound and a mixture?

Back

A compound consists of chemically bonded atoms, while a mixture consists of physically combined substances.

Front

What happens to the properties of substances in a mixture?

Back

In a mixture, the individual substances retain their own properties.

Front

What is a molecule?

Back

A molecule is the smallest unit of a compound that retains the chemical properties of that compound.

Front

Are all elements found on the periodic table?

Back

Yes, all elements are listed on the periodic table.