AP Biology Topic 1.1 Properties of Water

Front

What is a solute?

Back

A solute is the substance that is dissolved in a solution.

Front

What gives rise to the cohesiveness of water molecules?

Back

Hydrogen bonds give rise to the cohesiveness of water molecules.

Front

What type of bonds connect hydrogen atoms to oxygen in a water molecule?

Back

Polar covalent bonds connect hydrogen atoms to oxygen in a water molecule.

Front

What is a solution?

Back

A solution is a liquid that is a homogeneous mixture of substances.

Front

What is the attraction between water molecules called?

Back

The attraction between water molecules is called a hydrogen bond.

Front

What is a solvent?

Back

A solvent is the substance that dissolves a solute.

Front

What is the difference between hydrophilic and hydrophobic substances?

Back

Hydrophilic substances are attracted to water, while hydrophobic substances repel water.

Front

What role do hydrogen bonds play in water's properties?

Back

Hydrogen bonds contribute to water's high surface tension, specific heat, and solvent capabilities.

Front

What is the significance of water's polarity?

Back

Water's polarity allows it to dissolve many ionic and polar substances, making it a universal solvent.

Front

What is a buffer?

Back

A buffer is a solution that resists changes in pH when acids or bases are added.