Rate of dissolving

The water is called the

• solvent

• solute

Which will dissolve faster? Crushed table salt or a cube of table salt. Assume they have an equal mass.

• crushed table salt

• crystal of table salt

change in state of matter from a liquid to a vapor or gas

• Magnetic

• Condensation

• Concentration

• Evaporation

to spread out evenly in a liquid

• Evaporation

• Dissolve

• Magnetic

• Solute

Which of the following actions will NOT

increase the rate of dissolution

(dissolving) for solids?

• Stirring the solution

• Decreasing the temperature

• Increasing the surface area of the

  solute

• Increasing the temperature

a change to matter in which no new kinds of matter are formed; ex: mixture

• Chemical Change

• Flammability

• Physical change

• Substance

Stirring the solution increases the rate of dissolution (rate of dissolving).

• True

• False

Which of the following statements is true about how using smaller salt crystals would affect the rate of making a salt solution in water?

• Smaller crystals increase the surface area and slow down dissolving.
• Smaller crystals decrease the surface area and speed up dissolving.
• Smaller crystals increase the surface area and speed up dissolving.
• Smaller crystals decrease the surface area and slow down dissolving.

How does cold water affect the speed of dissolving?

• Cold water slows down dissolving.

• Cold water speeds up dissolving.

• Cold water has no effect on dissolving.

• Cold water has no effect on dissolving.

material with very tiny holes that blocks solid or larger particles but allows gas, liquid, or small grains to pass through

• Filter

• Magnet

• Tweezers

• Beaker