👉 The Harvard fluid, often denoted as H2O, is a fundamental compound that represents water in its pure, molecular form. It consists of two hydrogen atoms covalently bonded to a single oxygen atom, forming a bent molecular structure with a bond angle of approximately 104.5 degrees. This unique geometry gives water its characteristic properties, such as high specific heat, high surface tension, and excellent solvent capabilities. The polar nature of the H2O molecule, due to the electronegativity difference between oxygen and hydrogen, allows it to dissolve a wide variety of substances, making it essential for life processes and a critical component in Earth's hydrological cycle.