Chemistry Explained

Reactions

Reaction types, rates and equilibrium.

Reactions

How Catalysts Speed Up Reactions: Cycles, Surfaces and Enzymes

Catalysts speed reactions without being used up. See how catalytic cycles, surface adsorption and enzymes work, with examples from industry and biology.

6 min read
Reactions

What Is Activation Energy? The Energy Barrier Behind Every Reaction

Activation energy is the minimum energy colliding molecules need to react. Learn the Arrhenius equation, energy diagrams and why heat speeds reactions.

6 min read