Pure Substances and Mixtures

Front

What is an element?

Back

Matter consisting of one kind of atom.

Front

What is a compound?

Back

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

Front

What is a mixture?

Back

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

Front

What is the chemical formula for water?

Back

Front

What is a diatomic element?

Back

An element that exists as molecules composed of two atoms.

Front

Give an example of a diatomic element.

Back

Front

What is the atomic mass of Carbon?

Back

12.

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that retain their individual properties.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout, such as saltwater.

Front

What is a heterogeneous mixture?

Back

A mixture where the individual components can be seen and are not uniform, such as a salad.