Solutions/Chemical Reactions

A teaspoon of dry coffee crystals dissolves when mixed in a cup of hot water. This process produces a coffee solution. The original crystals are classified as a -

• solute

• solvent

• reactant

• product

Tags

NGSS.MS-PS1-2

A solution that contains less solute than it can hold at a given temperature is -

• disassociated

• saturated

• supersaturated

• unsaturated

Which of the following samples of sugar will dissolve fastest in a pitcher of lemonade?

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A student made a homogeneous mixture of water and salt. Which of the following statements applies to this homogeneous mixture?

• This mixture is a pure substance

• This mixture is a solution

• The salt is not evenly distributed throughout this mixture

• The salt chemically combines with the water in this mixture

The diagram shows a cube of sodium chloride beginning to dissolve in water. Which of the following changes will cause the cube to dissolve more quickly?

• pouring off half of the water

• removing the stopper

• swirling the flask

• decreasing the temperature of the water

Tags

NGSS.MS-PS1-2

• HCl

• KCl

Tags

NGSS.MS-PS1-2

Which statement is true for a saturated solution?

• The maximum amount of solute has been dissolved in the solution

• More solute can still be dissolved in the solution

• There is more solute dissolved in the solution than should be able to dissolve

• The solution is blue

• 80 g

• 10 g

• 20 g

• 5 g

Tags

NGSS.MS-PS1-4

Tags

NGSS.MS-PS1-2

• The solution is unsaturated.

• The solution is supersaturated.

• The solution is diluted.

• The solution is saturated.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4