Properties of Water

Front

What is the main property of water that allows it to dissolve polar substances?

Back

Water is a polar molecule, which means it has a partial positive charge on one side and a partial negative charge on the other. This polarity allows it to interact with and dissolve other polar substances.

Front

Which type of molecules are least likely to dissolve in water?

Back

Nonpolar molecules, such as fats and oils, are least likely to dissolve in water due to their lack of charge.

Front

What is cohesion in the context of water?

Back

Cohesion refers to the attraction between water molecules, which allows them to stick together.

Front

What is adhesion in the context of water?

Back

Adhesion is the attraction between water molecules and other substances, allowing water to stick to surfaces.

Front

What causes surface tension in water?

Back

Surface tension is caused by the cohesive forces between water molecules at the surface, creating a 'skin' that resists external force.

Front

Why does ice float on water?

Back

Ice floats on water because it is less dense than liquid water; as water freezes, it expands due to the formation of a crystalline structure.

Front

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

Back

Water's high specific heat means it can absorb a lot of heat without a significant change in temperature, helping to regulate climate and maintain stable environments.

Front

How does water's polarity affect its solvent properties?

Back

Water's polarity allows it to surround and separate ions and polar molecules, making it an excellent solvent for many substances.

Front

What is the role of hydrogen bonds in water?

Back

Hydrogen bonds are weak attractions between water molecules that contribute to water's unique properties, such as cohesion, adhesion, and high specific heat.

Front

What is the difference between cohesion and adhesion?

Back

Cohesion is the attraction between water molecules, while adhesion is the attraction between water molecules and other substances.