Pure Substances & Mixtures

A pure substance that cannot be broken down into other substances by chemical or physical means.

This diagram represents a _____. Options: pure substance that is a compound, mixture of elements, pure substance that is an element, mixture of compounds

Can a mixture be separated?

The basic unit of matter is

A substance that contains only one type of atom is a(n)

This picture represents which of the following? Options: Element, Compound, Mixture

What is a pure substance?

NaHCO₃ is an example of —

Substances formed from atoms of two or more elements are called

Describe this sample: Pure element, Pure compound, Mixture of elements, Mixture of compounds