Properties and Bonds of Water

Front

What is the molecular structure of water?

Back

Water (H2O) consists of two hydrogen atoms covalently bonded to one oxygen atom, forming a bent shape.

Front

What type of bond holds water molecules together?

Back

Hydrogen bonds hold water molecules together, allowing for unique properties like cohesion and adhesion.

Front

What is cohesion in the context of water?

Back

Cohesion is the attraction between water molecules, which allows them to stick together, contributing to surface tension.

Front

What is adhesion in the context of water?

Back

Adhesion is the attraction between water molecules and other substances, allowing water to climb up surfaces (capillary action).

Front

Why is water considered a polar molecule?

Back

Water is polar because of the unequal sharing of electrons between oxygen and hydrogen, resulting in a partial negative charge on oxygen and partial positive charges on hydrogen.

Front

What is the significance of water's high specific heat?

Back

Water's high specific heat allows it to absorb and release large amounts of heat without significant temperature changes, stabilizing climates and organisms.

Front

How does water's density change when it freezes?

Back

Water expands and becomes less dense when it freezes, causing ice to float on liquid water.

Front

What role does water play in biological systems?

Back

Water is essential for life; it acts as a solvent, participates in chemical reactions, and helps regulate temperature.

Front

What is the importance of hydrogen bonds in water?

Back

Hydrogen bonds are crucial for water's unique properties, including its high boiling point, surface tension, and solvent capabilities.

Front

What is capillary action?

Back

Capillary action is the ability of water to flow in narrow spaces against gravity, due to cohesion and adhesion.