The diagram is a model of two solutions. Each purple ball represents one particle of solute.

Which solution has a higher concentration of purple particles?

• Solution A

• Solution B

• neither; their concentrations are the same

Tags

NGSS.MS-PS1-2

The diagram is a model of two solutions. Each yellow ball represents one particle of solute.

Which solution has a higher concentration of yellow particles?

• Solution A

• Solution B

• neither; their concentrations are the same

Tags

NGSS.MS-PS1-2

More solute means a higher concentration

• True

• False

To increase the concentration of a solution I would

• add more solvent

• remove some of the dissolved solvent

• evaporate some of the water

• add some more water

To dilute a solution I would

• add more solvent

• remove some of the dissolved solvent

• evaporate some of the water

• add some more water

__________ are made up of solutes and solvents.

• Solutions

• Suspensions

• Heterogeneous Mixtures

• Pure Substances

The ___ is the thing being dissolved.

• solute

• solvent

• mixture

• solution

All substances have the same solubility.

• True

• False

If I dissolve carbon dioxide in water, what is my solvent?

• Carbon Dioxide

• There is no solvent

• Oxygen

• Water

Tags

NGSS.MS-PS1-2

What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH)

• 0.8 M

• 1.5M

• 3.0M

• 6.0M