Mixtures and Solutions

What are the two main types of mixtures?

• pure substances and compounds

• solids and liquids

• elements and compounds

• homogeneous mixtures and heterogeneous mixtures

Define solubility.

• Ability of a substance to solidify in a solvent

• Ability of a substance to evaporate in a solvent

• Ability of a substance to dissolve in a solvent

• Inability of a substance to dissolve in a solvent

What is the difference between a solute and a solvent?

• A solute is the substance being dissolved, while a solvent is the substance doing the dissolving.

• A solute is a solid substance, while a solvent is a liquid substance.

• A solute and a solvent are the same thing.

• A solute is the substance doing the dissolving, while a solvent is the substance being dissolved.

What is a homogeneous mixture?

• A homogeneous mixture is a mixture that has a non-uniform composition throughout.

• A homogeneous mixture is a mixture that contains only one substance.

• A homogeneous mixture is a mixture that has a uniform composition throughout.

• A homogeneous mixture is a mixture that can be separated into its components easily.

What is a heterogeneous mixture?

• A heterogeneous mixture is a mixture that consists of visibly different substances or phases.

• A heterogeneous mixture is a mixture that consists of only one substance.

• A heterogeneous mixture is a mixture that consists of invisible substances or phases.

• A heterogeneous mixture is a mixture that consists of substances that are chemically combined.

What factors can affect the solubility of a solute?

• Temperature, pressure, nature of solute and solvent

• Shape of the container, smell of the solute, viscosity of the solvent

• Time of day, humidity, density of the solute

• Color of the solute, pH of the solvent, size of the container

How is concentration calculated?

• By subtracting the amount of solute from the volume of solution.

• By dividing the amount of solute by the volume of solution.

• By multiplying the amount of solute by the volume of solution.

• By adding the amount of solute to the volume of solution.

In a ______________, one substance is dissolved in another substance.

• solution

• suspension

• colloid

If a spoonful of sugar is mixed in a glass of water, what is the water called? 

• solute
• solution
• solvent
• element 

Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?

• A solution
• A colloid
• A suspension
• A compound