A water molecule consists of two hydrogen atoms and one oxygen atom, represented chemically as H2O. The hydrogen atoms are bonded to the oxygen atom through covalent bonds, creating a bent shape. This unique structure allows water to have special properties, such as being a universal solvent and having a high specific heat capacity. Water molecules are polar, meaning they have a slight positive charge on one side and a slight negative charge on the other. This polarity enables water to form hydrogen bonds with other molecules, contributing to its ability to dissolve various substances and its importance in biological processes, such as those in cells.