What makes an acid different from a base? The explanation discusses the formation of an acid or base from hydrogen and hydroxide ions. The instruction ends with an overview of how this relates to the pH scale. 

Not all radiation is hazardous. Electromagnetic radiation is pure energy. Nuclear radiation comes from the atomic nucleus in which isotopes become unstable and radioactive. Share this video with your class to explore the types of...

The pH scale is actually based on logarithms rather than just simple numbers. The fact-filled video begins with an explanation of the auto-ionization of water. Then it describes the relationship between H+ and OH- in every solution. It...

The pH scale is actually based on logarithms rather than just simple numbers. The fact-filled video begins with an explanation of the auto-ionization of water. Then it describes the relationship between H+ and OH- in every solution. It...

Sharing is caring in covalent bonds. The instructor details how to solve for bond order in covalent bonds using electron dot structures to find the formal charges. 

Cute manga style animated Aya is your host for this short but good explanation of valence electrons and forming ions. She explains how to know whether to add or subtract electrons when ions are forming. Note: The voice work is a little...

Watch electrolysis in action. A young student performs an electrolysis experiment as it is explained in text beneath her equipment. Show this as an example of how to perform electrolysis before having your chemistry students carry out...

Learn how cations and anions are formed by gaining or losing electrons. Ionization energy relates to the ability of an electron to leave or join an atom.

This lesson will define polyatomic ions and provide examples using Lewis structures. It is 2 of 2 in the series titled "Formulas of Polyatomic Ions."

This lesson demonstrates how to calculate changes in freezing point and boiling point of an aqueous solution.

Correcting a mistake and learning a bit about ion size. [3:04]

Do you know the difference between ions and atoms? Video explore the definition of ions, atoms, and how to calculating charge on an ion. [6:36]

Find out how tonicity is determined by ions that don't move across membranes and how it affects the movement of water. [11:03]

Learn the basics of ionic and covalent bonds with this video. Video gives an example of how each type of bond with form with easy to follow visuals. [1:29]

This lesson will define polyatomic ions and provide examples using Lewis structures. It is 1 of 2 in the series titled "Formulas of Polyatomic Ions."

This lesson will define an ion and explain what happens if the number of electrons in an atom changes. It is 3 of 3 in the series titled "Ions."

This lesson will introduce the solubility table and demonstrate how to determine if an ionic compound will dissociate in water. It is 2 of 2 in the series titled "Solubility Table."

In this video, Paul Andersen explains how ionic solids form a lattice between cations and anions. According the Coulomb's Law the lattice energy increases as the ions carry a larger charge and are smaller. Some of the properties of ionic...