REVIEW DISSOLUTION

What does the rate of dissolving refer to?

• The size of solute particles needed for dissolving

• The temperature required for a solute to dissolve

• How quickly a solute dissolves in a solvent

• The amount of solute that can dissolve in a solvent

Which will dissolve faster, a sugar cube or granulated sugar?

• Both at the same rate

• Granulated sugar

• Neither, they do not dissolve in water

• Sugar cube

Why do smaller pieces of a solute dissolve faster?

• They have a higher temperature

• They have less mass

• They have more surface area exposed to the solvent

• They are heavier than larger pieces

What is the main reason smaller solute particles dissolve faster?

• They are lighter

• They have more surface area

• They are hotter

• They are more soluble

What effect does stirring have on the dissolving process?

• It changes the temperature of the solution

• It increases the rate of dissolving

• It decreases the rate of dissolving

• It has no effect

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Why does stirring speed up dissolving?

• It increases the solute's surface area

• It decreases the temperature of the solvent

• It brings fresh solvent into contact with the solute

• It breaks the solute into smaller pieces

What is the role of agitation in the dissolving process?

• It makes the solute heavier

• It decreases the temperature of the solvent

• It reduces the solute's surface area

• It brings fresh solvent into contact with the solute

How does temperature affect the rate of dissolving?

• Higher temperatures decrease the rate

• Temperature has no effect

• Higher temperatures increase the rate

• Only cold temperatures increase the rate

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to solvent particles at higher temperatures?

• They move slower

• They move faster

• They freeze

• They evaporate

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Why does a higher temperature increase the dissolving rate?

• It makes the solute particles larger

• It decreases the solvent's kinetic energy

• It makes the solvent particles heavier

• It increases the solvent's kinetic energy

Tags

NGSS.MS-PS1-4