CFA_ 8.6A Elements, Compounds, and Mixtures

Front

What is a mixture?

Back

A combination of different substances.

Front

What is an element?

Back

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

Front

What is a compound?

Back

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

Front

What is the difference between a homogeneous mixture and a heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has a non-uniform composition.

Front

What is an example of a homogeneous mixture?

Back

Saltwater.

Front

What is an example of a heterogeneous mixture?

Back

Salad.

Front

What happens during electrophoresis of water?

Back

Water is separated into hydrogen and oxygen, which are elements.

Front

What is a diatomic element?

Back

An element that exists naturally as a molecule composed of two atoms, such as O2 (oxygen) or N2 (nitrogen).

Front

What is a solution?

Back

A homogeneous mixture where one substance (solute) is dissolved in another (solvent).

Front

What is the main characteristic of a pure substance?

Back

It has a constant composition and distinct properties.