Solutions Review

Which of the following is a heterogeneous mixture

• water
• Salt dissolved in water
• chex mix
• air

Which of the following does not increase the rate of dissolving a solid in a liquid?

• stirring the solution
• crushing up the solute
• raising the temperature of the water
• lowering the temperature of the water

Why will sugar dissolve in water?

• sugar is ionic
• sugar has a similar polarity to water
• sugar will not dissolve in water
• sugar has similar energy to water

At 40^oC which salt is least soluble?

• KClO₃
• NaCl
• KI
• KNO₃

Which will dissolve the slowest?

• powdered sugar in hot water

• powdered sugar in cold water

• sugar cubes in hot water

• sugar cubes in cold water

As the pressure decreases the solubility of a gas in a liquid

• increases
• decreases

Which of these is true about a solvent?

• substance dissolving the other substance
• the substance getting dissolved
• both parts of the solution
• always water

What is the solute in a solution of salt and water?

• salt
• water
• neither
• both

What is the solvent in a solution of carbon dioxide bubbles in Dr. Pepper?

• carbon dioxide bubbles

• Dr. Pepper

• both

• neither

What is the solute in a solution of tea with sugar?

• tea
• sugar
• both
• neither