Final answer:
Hydrogen bonds give water two key properties: high heat capacity and high heat of vaporization.
Step-by-step explanation:
Hydrogen bonds are responsible for two important properties of water: its high heat capacity and its high heat of vaporization.
Water's high heat capacity means that it can absorb a large amount of heat energy before its temperature increases significantly. This property allows water to regulate temperature in living organisms and helps maintain a stable environment.
Water's high heat of vaporization means that it requires a large amount of heat energy to change from a liquid to a gas. This property allows water to cool down when it evaporates, making it an effective cooling mechanism.