Factors Affecting Rate of Dissolving

Stirring a solution makes solid dissolve faster.

• True

• False

Heating a solution makes solutes ___________ faster.

• dissolve

• to become solid

Tags

NGSS.MS-PS1-4

Heating makes solid dissolves faster because heat speeds up the particles and allows to spread through the solution more easily.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Smaller grains dissolve faster than larger grains.

• True

• False

Which factor does NOT affect the rate of dissolution?

• Temperature

• Surface area

• Agitation

• Color of the solute

Which does NOT affect the rate of dissolution?

• Luster

• Temperature

• Agitation

• Surface Area

Match the following scenarios with their effects on the rate of dissolution.

• Using a solvent at constant temperature

• It remains the same

• Changing the solvent temperature from low to high

• It first decreases, then increases

• Cooling the solvent

• It decreases

• Heating the solvent

• It increases

Tags

DOK Level 2: Skill/Concept

Match the following

• exposure

• Higher temp = higher rate of dissolution = higher ____

• movement

• More _____ = more exposure = faster rate of dissolution

• kinetic energy

• more surface area = more ____ = increased rate of dissolution

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The grain size of a solute do not affects the rate at which it will dissolve in a liquid.

• True

• False

Tags

NGSS.MS-PS1-2

Key-words we've learned from today's lesson

• Rate

• surface area,

• cubic salt/ sugar

• grain size

• Stirring / heating

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4