elements, compounds, and mixtures

Front

What is an element?

Back

A substance that contains only one type of atom.

Front

Give an example of an element.

Back

Gold (Au) is an example of an element.

Front

What is a compound?

Back

A substance that contains two or more elements that are chemically combined.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically combined.

Front

What is the chemical symbol for gold?

Back

Au.

Front

How can you identify a compound?

Back

A compound can be identified by its chemical formula, which shows the elements and their ratios.

Front

What distinguishes a mixture from a compound?

Back

In a mixture, the substances retain their individual properties, while in a compound, the properties change.

Front

What is an example of a mixture?

Back

Air is an example of a mixture, as it contains various gases.

Front

What happens to the properties of elements when they form a compound?

Back

The properties of the individual elements change when they chemically combine to form a compound.

Front

Can elements be broken down into simpler substances?

Back

No, elements cannot be broken down into simpler substances by chemical means.