Matter Test Review #1 (and surface area)

Front

What happens to the rate of dissolving when the temperature of water is increased?

Back

The salt will dissolve FASTER.

Front

Which student likely added sugar to hot water if Student A's sugar dissolved in 1.5 mins and Student B's sugar dissolved in 6.3 mins?

Back

Student A: Sugar dissolved in 1.5 mins.

Front

What should you do to the temperature of the water to make sugar dissolve faster?

Back

Increase the temperature.

Front

What can you do to a cube of sugar to make it dissolve faster in water?

Back

Crush the sugar cube into small pieces.

Front

What does an increase in temperature mean?

Back

It is getting hotter.

Front

Define 'dissolving'.

Back

Dissolving is the process where a solute (like sugar) mixes with a solvent (like water) to form a solution.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solution, such as sugar in water.

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute, such as water in a sugar solution.

Front

What is the effect of crushing a solid solute on its dissolving rate?

Back

Crushing a solid solute increases its surface area, allowing it to dissolve faster.

Front

What is the relationship between temperature and solubility for most solids?

Back

For most solids, solubility increases as temperature increases.