Solutions and Polarity Review

Which term describes a solution in which there is less than the maximum amount of solute dissolved for the given temperature?

• Unsaturated

• Saturated

• Concentrated

• Supersaturated

The ___ is the thing being dissolved.

• solute
• solvent
• mixture
• suspension

What type of a solution is 60g NaNO₃ at 40ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

Besides stirring, which of the following should be done to make this powder dissolve faster in the liquid?

• Add heat to the liquid

• Cool the liquid in a freezer

• Add more powder to the liquid

• Store the mixture in a dark place

Since "like dissolves like", water and oil will not mix because

• both of them are polar

• both of them are nonpolar

• oil is polar and water is nonpolar

• oil is nonpolar and water is polar

What is the most common solvent in everyday life? (also known as the universal solvent)

• Ethanol

• Tuluene

• Water

• Oils

For most solids in water, how does temperature affect solubility?

• Solubility is not affected by temperature.

• Solubility decreases with an increase in temperature.

• Solubility increases with an increase in temperature.

Which of the following would result in being able to dissolve a greater amount of gas in a
solution?

• Heat the gas and solution
• Decrease the pressure of the solution
• Make the gas an electrolyte
• Cool the gas and solution

Solution where more solute can still be dissolved at the given temperature. 

• Saturated
• Unsaturated
• Mixture
• Homogeneous solution

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated