Properties of Water

Front

What is a polar molecule?

Back

A molecule in which opposite ends have opposite electric charges, such as water.

Front

Why is water considered a universal solvent?

Back

Because it can dissolve most substances.

Front

What causes a water strider to skate on the surface of a pond?

Back

Hydrogen bonds result in water cohesion, creating surface tension.

Front

What is the meniscus in a graduated cylinder caused by?

Back

The attraction of water molecules to the glass, leading to adhesion.

Front

What is cohesion?

Back

The tendency of molecules of the same kind to stick to one another.

Front

What is adhesion?

Back

The attraction between different kinds of molecules, such as water and glass.

Front

What is surface tension?

Back

The cohesive force at the surface of a liquid that makes it behave like a stretched elastic membrane.

Front

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

Back

They contribute to water's high surface tension, boiling point, and specific heat.

Front

What is specific heat?

Back

The amount of heat required to raise the temperature of a substance by one degree Celsius.

Front

How does water's density change when it freezes?

Back

Ice is less dense than liquid water, allowing it to float.