BIO108 UNIT 1 EXAM
2026
[DATE]
[COMPANY NAME]
[Company address]
, Bio108 Unit 1 Exam 2026
Hydronium H30+
Hydroxide OH–
Hydronium and hydroxide are a result of Water dissociation
If a solution has more OH– molecules than H+ ions than the solution is more Basic
If a solution has more H+ ions than OH– molecules than the solution is more Acidic
Blank accounts for the four properties of water. Hydrogen bonds
Cohesion vs adhesion Cohesion: water to water molecules. Helps with the transport of water against
gravity. Also, helps with surface tension
Adhesion: water molecules to other molecules.
Moderation of temperature Water absorbs heat from warmer air and releases stored heat to cooler
air. Water can absorb or release large amounts of heat with only a slight change in its own temperature.
As a liquid evaporates, its remaining surface cools, this is called blank. Evaporative cooling. It helps
stabilize temperatures in organisms and bodies of water.
Expansion upon freezing Ice floats in liquid water because hydrogen bonds in ice are stable,
pushing water molecules further apart. If ice sank, all bodies of water would eventually freeze solid,
making life impossible.
Why is water a versatile solvent? Due to its polarity
Why do hydrophilic substances love water? Because they can form hydrogen bonds. Hydrophobic
substances cannot form hydrogen bonds.