Elements, Compounds, Mixtures

Front

What is a mixture of atoms?

Back

A mixture of atoms is a combination of two or more different types of atoms that are not chemically bonded together.

Front

How many total atoms are in K₂SO₄?

Back

There are 7 total atoms in K₂SO₄ (2 potassium, 1 sulfur, and 4 oxygen).

Front

What does a mixture of elements represent?

Back

A mixture of elements represents a combination of two or more different elements that are not chemically bonded.

Front

What is an element?

Back

An element is a pure substance made of only one type of atom.

Front

Which of the following is an example of an element?

Back

Oxygen is an example of an element.

Front

What is a compound?

Back

A compound is a substance formed when two or more different types of atoms bond together chemically.

Front

What is a pure substance?

Back

A pure substance is a material that has a constant composition and consistent properties throughout.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of substances that are not chemically bonded, while a compound is a substance formed from two or more elements that are chemically bonded.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition and appearance throughout.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that consists of visibly different substances or phases.