Elements, Compounds, & Mixtures

Front

What is the smallest unit of an element?

Back

An atom.

Front

What is all matter made of?

Back

Atoms.

Front

Which of the following is a mixture?

Back

Sand.

Front

Is salt (NaCl) a compound or an element?

Back

Compound.

Front

What is a substance that cannot be broken down into any other substance by ordinary chemical means?

Back

An element.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is a mixture?

Back

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

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down, while a compound is made of two or more elements chemically combined.

Front

Give an example of an element.

Back

Oxygen (O).

Front

Give an example of a compound.

Back

Water (H2O).