Many fans are rallying behind Selena Gomez after a video she posted reacting to mass deportations approved by the Trump ...

It will likely be an earthquake we won't soon forget. The moment it hit, Granite Staters -- and their pets -- reacted with shock.

In this video, Fran Scott demonstrates how to measure the rate of reaction and how to increase it. The greater the frequency of successful collisions between reactant particles, the greater the ...

This video looks at reversible reactions and dynamic equilibrium: chemical reactions are reversible and may reach a dynamic equilibrium. The position of equilibrium of a reversible reaction can be ...