Unit 2

Front

What is a solvent?

Back

A solvent is a substance in which another substance (solute) is dissolved, forming a solution.

Front

How does surface area affect the rate of dissolution?

Back

Higher surface area (more little pieces) dissolves faster than lower surface area (more big pieces).

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What do we call a solution that contains water?

Back

A solution that contains water is called aqueous.

Front

What is a solution?

Back

A solution is a kind of 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 is a solute?

Back

A solute is the substance that is dissolved in a solvent to form a solution.

Front

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

Back

The solubility of most solids increases as temperature increases.

Front

What is an example of a chemical change?

Back

Burning wood is an example of a chemical change.

Front

What is the role of temperature in the rate of dissolution?

Back

Increasing temperature generally increases the rate of dissolution.