Properties of Water

Front

What two elements make up water?

Back

Hydrogen and oxygen

Front

Why is water considered a universal solvent?

Back

Dissolves most substances

Front

Why does ice float on liquid water?

Back

less dense

Front

The tightness across the surface of water that enables paper clips to float is ____________.

Back

surface tension

Front

What is the attractive force between two bodies of different substances that are in contact with each other? This is the property of a water molecule that allows it to stick to other substances.

Back

adhesion

Front

What is the force that holds molecules of a single substance together and is the property of water that allows one water molecule to stick to other water molecules?

Back

cohesion

Front

A _________________ is a liquid that dissolves substances or the substance in which the solute dissolves.

Back

solvent

Front

Why does ice float? Options: As water freezes, it expands and its density decreases., As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy., As water freezes, air becomes trapped between the hydrogen bonds of water molecules., As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Back

As water freezes, it expands and its density decreases.

Front

Why is water considered a universal solvent?

Back

Dissolves many substances

Front

Which of the following is LEAST likely to dissolve in water? Options: nonpolar fats and oils, polar sugar molecules, salt made of a positive sodium ion and a negative chloride ion, all of the substances will dissolve easily in water

Back

nonpolar fats and oils