True or False Flashcard

Front

As a sugar cube is broken down into a powder, the surface area decreases.

Back

False - The surface area actually increases when a sugar cube is broken down into a powder.

Front

Wood is insoluble in water.

Back

True - Wood does not dissolve in water.

Front

When sand and water are mixed together a solution is created.

Back

False - A mixture is created, not a solution.

Front

Salt can be separated from water by boiling the water.

Back

True - Boiling water allows the salt to crystallize as the water evaporates.

Front

Water freezes into ice.

Back

P (Physical Change) - This is a physical change as the state of water changes from liquid to solid.

Front

What is a solution?

Back

A solution is a homogeneous mixture where one substance is dissolved in another.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What happens to the solubility of most solids in water as temperature increases?

Back

Generally, the solubility of most solids increases with an increase in temperature.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What is an example of a chemical change?

Back

Rusting of iron is an example of a chemical change.