Level 1 Mastery--Elements, Mixtures, Compounds

Front

What is an element?

Back

A pure substance that cannot be separated into simpler substances by chemical or physical means.

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What must happen for elements to become a compound?

Back

Chemical bonds must form between atoms.

Front

Is water (H2O) an element, compound, or mixture?

Back

Water is a compound.

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 bonded.

Front

Can compounds be separated into simpler substances?

Back

No, compounds cannot be separated by physical means; they require chemical reactions.

Front

What is rust classified as?

Back

Rust is classified as a compound.

Front

What are the two main types of pure substances?

Back

Elements and compounds.

Front

What is an example of a mixture?

Back

Air is an example of a mixture, as it contains different gases that are not chemically bonded.