Summary of the Chapter (Snapshot)

Cause and Effect — Dissolving and Density

Mind Map

Key Terms and Definitions

Solution

A uniform mixture formed when a solute dissolves in a solvent.

Solute

The substance that dissolves; the solid, or the liquid present in smaller amount.

Solvent

The substance that dissolves the solute; the liquid, or the one in larger amount.

Uniform mixture

A mixture whose components are evenly spread and not seen separately.

Non-uniform mixture

A mixture whose components are unevenly spread and can be seen separately.

Saturated solution

A solution that cannot dissolve any more solute at that temperature.

Unsaturated solution

A solution that can dissolve more solute at a given temperature.

Concentration

The amount of solute present in a fixed quantity of solution or solvent.

Solubility

The maximum solute that dissolves in a fixed quantity of solvent at a temperature.

Mass

The quantity of matter present in an object, measured in g or kg.

Weight

The force with which Earth attracts an object, measured in newtons.

Volume

The space occupied by an object or substance.

Meniscus

The curved surface a liquid forms in a measuring cylinder.

Density

The mass present in a unit volume of a substance (mass ÷ volume).

Relative density

The density of a substance divided by the density of water; a unitless number.

Dissolved oxygen

The small amount of oxygen dissolved in water that sustains aquatic life.