States of matter and intermolecular forces

This course is a part of Chemistry, a 18-course Topic series from Khan Academy.

Have you ever wondered how some insects are able to "skate" on the surface of water? We will learn about how intermolecular forces make this possible. We will also cover liquids, solids, mixtures, and phase changes.

This course contains 3 segments:

States of matter

Matter can be in the liquid, solid, gas, or plasma state. We will be learning about properties of each state of matter, as well analyzing phase changes using heating curves and phase diagrams.

Introduction to intermolecular forces

Intermolecular forces act between neighboring atoms, molecules, or ions, and they can be used to explain pretty much every macroscopic property of matter! We'll be learning about the different kinds of intermolecular forces and how they affect properties such as surface tension.

Mixtures and solutions

The air you are (hopefully) breathing is a mixture of nitrogen and oxygen gases. We could also think of it as a solution of oxygen gas in nitrogen gas. In this section we will be learning about different types of mixtures, how to calculate concentration, and colligative properties.