Solubility Factors Quiz

By stirring a solid solute in a solvent, do you increase or decrease the speed of dissolving?

• increase

• decrease

• stays the same

• unknown

Tags

NGSS.MS-PS1-2

Why does stirring a solute increase the rate of dissolving?

• It increases the amount of fresh solute that interacts with the solvent

• It decreases the amount of fresh solute that interacts with the solvent

• it increases the gravitational force between the particles

• it increases the strong force between the particles

What does it mean to increase the surface area of a solute?

• to increase the size of the solution

• to increase the size of the solvent

• to make the size of the solute bigger

• to increase the amount of area the solute interacts with the solvent

You are about to add sugar into water at room temperature. Which is NOT a way to speed up the rate of dissolving?

• increase the temperature of the water

• stir the solution once the sugar is in the water

• make sure the sugar is crushed into smaller pieces

• lower the temperature of the water

Why does increasing the temperature of a solution increase the rate of dissolving?

• it increases the kinetic energy of the particles and causes more interaction between the solute and solvent

• it increases the potential energy of the particles and causes more interaction between the solute and solvent

• it decreases the kinetic energy of the particles and causes more interaction between the solute and solvent

• it decreases the potential energy of the particles and causes more interaction between the solute and solvent

Tags

NGSS.HS-PS1-5

Which Alka-Seltzer will dissolve faster?

• 
• 
• 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Assume every cup contains soda water. In which cup does the greatest release of dissolved gas occur?

• Cup A

• Cup B

• Cup C

• All cups will release the same amount of gas

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

What is the solute?

• The substance being dissolved

• The substance doing the dissolving

• The combined mixture of solution

Why does soda "fizz?"

• Because when you open the can, you lower the pressure and allow dissolved gas to escape

• Because the temperature of the soda has been lowered, allowing dissolved gas to escape

• Because when you open the can, the gas in the soda is able to escape gravitational forces

Tags

NGSS.MS-PS1-2

Which is NOT a factor that affects the rate a solid dissolves in water?

• stirring/agitation

• temperature

• surface area

• isotope

Tags

NGSS.HS-PS3-4