Mixtures and Solutions

What is a mixture?

• A single substance that is chemically bonded together.

• A combination of two or more substances that are chemically bonded together.

• A substance that cannot be separated into its constituent parts.

• A combination of two or more substances that are not chemically bonded together.

Name two types of mixtures.

• solids, liquids

• homogeneous mixtures, heterogeneous mixtures

• pure substances, solutions

• compounds, elements

What is a solution?

• A solution is a temporary fix to a problem.

• A solution is a type of liquid used in chemistry experiments.

• A solution is a synonym for resolution.

• A solution is a means of solving a problem or addressing a challenge.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

What are the properties of a solution?

• A solution is a heterogeneous mixture composed of two or more substances with non-uniform composition.

• A solution is a homogeneous mixture composed of two or more substances with uniform composition, transparency, and the ability to pass through a filter without leaving any residue.

• A solution is a mixture that is opaque and cannot pass through a filter.

• A solution is a mixture composed of only one substance.

What is a homogeneous mixture?

• A homogeneous mixture is a mixture that can be separated into its components by physical means.

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

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

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

What is a heterogeneous mixture?

• A mixture that has a uniform composition throughout.

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

• A mixture that cannot be separated into its components.

• A mixture that consists of only one substance or phase.

Give an example of a homogeneous mixture.

• Saltwater

• Oil

• Concrete

• Milk

Give an example of a heterogeneous mixture.

• Fruit salad

• Ice cream

• Pizza

• Trail mix

What is solubility?

• Inability of a substance to dissolve in a solvent and form a homogeneous solution.

• Ability of a substance to dissolve in a solvent and form a homogeneous solution.

• Ability of a substance to evaporate in a solvent and form a homogeneous solution.

• Ability of a substance to solidify in a solvent and form a homogeneous solution.

How can you increase the solubility of a solute in a solvent?

• By increasing the temperature or decreasing the particle size of the solute.

• By decreasing the temperature or increasing the particle size of the solute.

• By decreasing the temperature or increasing the pressure of the system.

• By decreasing the temperature or increasing the particle size of the solvent.

Tags

NGSS.MS-PS1-4