HB Midterm Properties of Water Review

Front

What causes water molecules to stick together?

Back

Water molecules stick together because one side has a positive charge and the other side has a negative charge.

Front

Why does ice float on water?

Back

Ice floats on water because as water freezes, the molecules move farther apart (expands) and the density decreases.

Front

What happens to water when it freezes?

Back

Water expands when it freezes, making it less dense.

Front

What is surface tension in water?

Back

Surface tension is the tightness across the surface of water that enables insects to walk on it.

Front

What type of molecule is water?

Back

Water is a polar molecule due to the partial charges within it.

Front

What is the significance of water's polarity?

Back

Water's polarity allows it to form hydrogen bonds, which are responsible for many of its unique properties.

Front

How does water's density change when it freezes?

Back

Water's density decreases when it freezes because the molecules are arranged in a way that takes up more space.

Front

What is adhesion in the context of water?

Back

Adhesion is the attraction between water molecules and other substances, which allows water to climb up surfaces.

Front

What is capillary action?

Back

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

Front

Why is water considered a universal solvent?

Back

Water is considered a universal solvent because it can dissolve many substances due to its polarity.