Unit 1: Water Properties

Front

What is cohesion in relation to water molecules?

Back

Cohesion is the property of water that allows water molecules to stick to each other due to hydrogen bonding.

Front

What is adhesion in relation to water?

Back

Adhesion is the property of water that allows it to be attracted to other substances, enabling it to stick to surfaces.

Front

True or False: Surface tension of water is the cohesive force between water molecules and other molecules.

Back

False. Surface tension is the cohesive force between water molecules themselves.

Front

What is surface tension?

Back

Surface tension is the tightness across the surface of water that allows objects, like paper clips, to float.

Front

What property of water allows it to regulate body temperature effectively?

Back

Water has a high capacity for heat, which allows it to absorb and retain heat.

Front

Define capillary action.

Back

Capillary action is the ability of water to flow in narrow spaces without the assistance of external forces, often due to adhesion and cohesion.

Front

What is polarity in water molecules?

Back

Polarity refers to the distribution of electrical charge over the atoms joined by the bond, making water a polar molecule with a partial positive charge on hydrogen and a partial negative charge on oxygen.

Front

How does water's high specific heat benefit the environment?

Back

Water's high specific heat helps stabilize temperatures in the environment, allowing ecosystems to thrive.

Front

What is the significance of water being a good solvent?

Back

Water's polarity allows it to dissolve many substances, making it essential for biological processes.

Front

Explain the concept of density in relation to water.

Back

Water is most dense at 4°C; ice is less dense than liquid water, which is why ice floats.