makes up most of the mass of most living things, including humans.
Water is the solvent of choice for most ionic reactions, for many
acids and bases, and is used in large quantities in many industrial
it has some unusual properties. Hydrogen bonding between adjacent
molecules causes it to have a higher than expected boiling point and
high viscosity, as well as resulting in expansion upon freezing.
chemistry courses, chemical equilibria, solution reactions and acid-base
properties are all discussed in terms of substances dissolved in water.
This is because water is the most commonly encountered solvent, and
because it is the solvent in all biological processes.