Many of this compound's unusual properties, such as its solid being less dense than its liquid form, are the result of hydrogen bonds.
In a laboratory environment, calcium chloride and sodium sulfate are commonly used "agents" for removing this substance; those agents are known as dessicants. This substance's solid-liquid phase boundary has a negative slope. Its triple point is used to define the Kelvin. One molecule of this is formed in a condensation reaction. Many of this compound's unusual properties, such as its solid being less dense than its liquid form, are the result of hydrogen bonds. For 10 points, name this chemical with formula H2O.
In a laboratory environment, calcium chloride and sodium sulfate are commonly used "agents" for removing this substance; those agents are known as dessicants.
{water} [accept {H2O} before mentioned]