Properties of Water

Front

What is capillary action in relation to water movement in plants?

Back

Capillary action is the ability of water to travel up from the roots of a tree to the top due to the combined effects of adhesion and cohesion.

Front

Why does ice float on water?

Back

Ice floats on water because, as water freezes, hydrogen bonds force the water molecules farther apart, forming a crystalline structure that decreases its density.

Front

What type of bond holds water molecules together?

Back

Hydrogen bonds hold water molecules together due to the attraction between the negative oxygen atom of one molecule and the positive hydrogen atom of another.

Front

What is adhesion in the context of water?

Back

Adhesion is the attraction of water molecules to other substances.

Front

Which part of the water molecule has a slightly positive charge?

Back

The hydrogen end of the water molecule has a slightly positive charge.

Front

What is cohesion in relation to water molecules?

Back

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

Front

How does temperature affect the density of water?

Back

As water cools and freezes, its density decreases due to the formation of hydrogen bonds that create a crystalline structure.

Front

What role do hydrogen bonds play in the properties of water?

Back

Hydrogen bonds are responsible for many of water's unique properties, including its high surface tension, boiling point, and ability to dissolve many substances.

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 changes in temperature, which helps regulate climate and maintain stable environments.

Front

How does water's polarity affect its solvent properties?

Back

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