Cycle 5 Unit 6 Test PreIB

Front

What does it indicate if a solute crystal does not dissolve in a solution after vigorous stirring?

Back

The solution is probably saturated.

Front

What is the process called when a solid forms after combining two ionic compounds?

Back

Precipitation.

Front

How is the solubility of a substance at a given temperature generally expressed?

Back

Amount of solute per amount of solvent.

Front

Which pair of solutions produces a precipitate when combined: Cu(NO3)2 and NaCl, Fe(NO3)3 and MgCl2, Cu(NO3)2 and K2CO3, or CaCl2 and NaNO3?

Back

Cu(NO3)2 and K2CO3.

Front

What does not increase the rate of dissolving a solid in water: raising the temperature of the water or stirring the solution?

Back

Stirring the solution.

Front

Define saturation in a solution context.

Back

A solution is saturated when it contains the maximum amount of solute that can dissolve at a given temperature.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solvent to form a solution.

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute, resulting in a solution.

Front

What is the difference between a saturated and a supersaturated solution?

Back

A saturated solution contains the maximum amount of solute that can dissolve, while a supersaturated solution contains more solute than can normally dissolve at that temperature.

Front

What is the role of temperature in the solubility of solids in liquids?

Back

Generally, increasing the temperature increases the solubility of solids in liquids.