Catalyst- Water Properties

Front

What allows a water strider to skate along the top of a pond?

Back

Hydrogen bonds result in water cohesion, creating surface tension.

Front

Why is water considered a polar molecule?

Back

The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.

Front

What term describes the attraction of water to other substances?

Back

Adhesion.

Front

What property of water causes it to bead up on glass?

Back

Adhesion.

Front

How can water have no net charge but still have slight charges in different parts of the molecule?

Back

The oxygen end is slightly negative and the hydrogen end is slightly positive.

Front

What is surface tension in relation to water?

Back

Surface tension is the cohesive force at the surface of water that allows it to resist external force.

Front

What is the significance of hydrogen bonds in water?

Back

Hydrogen bonds contribute to water's unique properties, including cohesion, adhesion, and high specific heat.

Front

How does temperature affect the density of water?

Back

Water is most dense at 4°C; as it freezes, it becomes less dense, allowing ice to float.

Front

What is the role of water in biological systems?

Back

Water serves as a solvent, temperature regulator, and medium for biochemical reactions.

Front

What is capillary action and how is it related to water?

Back

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