Elements, Compounds, Mixtures

Front

What is a compound?

Back

A pure substance made up of two or more atoms chemically combined.

Front

What type of substance is formed through a chemical change?

Back

Compound

Front

What is the atmosphere an example of?

Back

Mixture

Front

What type of substance is represented by O₂?

Back

Element

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances.

Front

What is a mixture?

Back

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

Front

Can compounds be separated into their components by physical means?

Back

No, compounds can only be separated by chemical means.

Front

What is the smallest unit of a compound?

Back

Molecule.

Front

What is the difference between an element and a compound?

Back

An element is made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

Give an example of a compound.

Back

Water (H₂O).