Properties of Substances and Mixtures

Front

What is a pure substance?

Back

A pure substance has a definite composition.

Front

What is an element?

Back

An element is made up of 1 kind of atom.

Front

What is a compound?

Back

A compound has more than one atom and always has the same formula.

Front

What does the Law of Constant Composition state?

Back

The Law of Constant Composition states that a compound always has the same proportion of elements.

Front

What is a mixture?

Back

A mixture is a physical blend of substances where the components keep their original behavior.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture has one single phase.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture has multiple phases.

Front

What are solutions?

Back

Solutions are smaller than colloids and suspensions, appear clear and uniform, cannot be separated by filtration, and do not show the Tyndall effect.

Front

What is the Tyndall effect?

Back

The Tyndall effect is the scattering of light by particles in a colloid or suspension.

Front

What are colloids?

Back

Colloids are larger than solutions, appear cloudy, cannot be separated by filtration, and show the Tyndall effect.