Elements Compounds & Mixtures

Front

What is a pure substance made of two or more elements chemically combined?

Back

A compound.

Front

Is METHANE (CH4) an element or a compound?

Back

A compound.

Front

What does the term 'element' refer to?

Back

A substance that cannot be broken down into simpler substances by chemical means.

Front

What is a mixture?

Back

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

Front

Is CARBON DIOXIDE (CO2) an element or a compound?

Back

A compound.

Front

Is ALUMINUM (Al) an element or a compound?

Back

An element.

Front

What is the smallest unit of an element?

Back

An atom.

Front

What is the difference between a compound and a mixture?

Back

A compound is a pure substance formed from two or more elements chemically combined, while a mixture is a combination of substances that retain their individual properties.

Front

Can compounds be separated into their components?

Back

Compounds can only be separated into their components through chemical reactions.

Front

What is an example of a compound?

Back

Water (H2O) is an example of a compound.