Molecular properties refer to the characteristics of molecules that influence their behavior and interactions. These properties include molecular size, shape, polarity, and the types of bonds between atoms. Understanding these properties helps scientists predict how substances will react in different environments. Additionally, molecular properties play a crucial role in fields like chemistry and biology. For example, the polarity of a molecule affects its solubility in water, while the shape can determine how well it fits into a receptor in biological systems. These factors are essential for drug design and understanding biochemical processes.