Ch 9 - Mixtures and Solutions

Colloid

A mixture with particles that do not settle.

Solution

Homogeneous mixture where solute dissolves in solvent.

Suspension

A mixture with particles that settle over time.

Tyndall Effect

Scattering of light by colloidal particles.

Solvent

Substance that dissolves the solute in a solution.

Solute

Substance that is dissolved in a solution.

Distillation

Separation technique based on boiling points.

Concentration

Amount of solute in a given amount of solution.

Freezing Point Depression

Freezing point decreases with increased solute concentration.

Saturated Solution

Solution at maximum solubility limit of solute.

Mixture

Combination of substances where components retain properties.

Filtration

Separation of solids from liquids using a filter.

Evaporation

Process of turning liquid into vapor.

Magnetism

Separation method using magnetic properties of substances.

Crystal Classification

Classification based on mineral shape and structure.

Boiling Point

Temperature at which a liquid turns to vapor.

Density

Mass per unit volume of a substance.

Sterling Silver

Alloy of silver with copper, not a solution.

Lemonade Solvent

Water is the solvent in lemonade.

Homogeneous Mixture

Mixture with uniform composition throughout.

Heterogeneous Mixture

Mixture where components are easily distinguishable.

Ways to speed up dissolving process

stirring, breaking apart the solute, and increasing temperature

examples of colloids

milk, fog

Examples of suspensions

muddy water, snow globe

examples of solutions

Salt and Water, Sugar and Water, Tea and Water