Chemical simulation is a computational method used to model and predict the behavior of chemical systems. By using algorithms and mathematical equations, scientists can simulate molecular interactions, reactions, and properties without conducting physical experiments. This approach helps researchers understand complex chemical processes and design new materials or drugs more efficiently. These simulations often rely on software tools that incorporate principles from quantum mechanics and thermodynamics. They can visualize how molecules interact at the atomic level, allowing for insights into reaction mechanisms and stability. Overall, chemical simulation is a valuable tool in fields like pharmaceutical research and materials science.