Mixtures and Solutions Mastery Quiz

Which method can be used to separate a mixture of sand and water?

• Evaporation

• Filtration

• Distillation

• Chromatography

What happens to the solubility of most solid substances as the temperature of the solvent increases?

• It decreases

• It increases

• It remains the same

• It first increases, then decreases

Tags

NGSS.4-PS3-2

What is the effect of stirring on the rate of dissolving a solid in a liquid?

• It decreases the rate

• It increases the rate

• It has no effect

• It initially increases the rate, then decreases it

Which of the following factors does NOT affect the rate of dissolving a solute in a solvent?

• Temperature of the solvent

• Size of the solute particles

• Color of the solute

• Stirring

How does temperature affect the solubility of gases in liquids?

• Solubility increases as temperature increases

• Solubility decreases as temperature increases

• Temperature has no effect on the solubility of gases

• Solubility first decreases, then increases as temperature increases

What is the main reason why sugar dissolves faster in hot water than in cold water?

• Sugar particles move slower in hot water

• Water molecules move faster in hot water and interact more with sugar

• Sugar particles are smaller in hot water

• Hot water has a higher pH

Tags

NGSS.5-PS1-1

Which of the following is a way to increase the concentration of a solution?

• Add more solvent

• Add more solute

• Decrease the temperature

• Increase the volume of the solution

What is the process called when a solid becomes a solution by mixing with a solvent?

• Freezing

• Dissolving

• Melting

• Evaporating

Tags

NGSS.5-PS1-4

What is the purpose of using filtration in separating mixtures?

• To dissolve all the components

• To evaporate the liquid component

• To separate a solid from a liquid

• To combine the components more thoroughly

Which of the following statements about solubility is FALSE?

• Solubility can be affected by pressure

• All substances are soluble in water to some extent

• Solubility is the same for all substances at a given temperature

• Solubility of solids in liquids generally increases with temperature