5.0 Mixtures

Substance

can be elements, compounds or mixtures,

which are all made up of atoms.

Matter

Can be divided into pure substances and impure substances

Element

A substance made of only one type of atom

• Elements bond together to form

  compounds made up of more than one type of atom

Pure substance

Composed of only one type of particle.

Pure substances include elements (made up of one type

of atom) and compounds.

Compounds

Are made of two or more types

of elements chemically joined together into particles that cannot be

physically separated

impure substance

made up of two or more substances that

can be separated. Impure substances include mixtures, which can be

physically separated into their different component

Lattice

where the atoms

are bonded together in a repeating three-dimensional

pattern

Mixture

contains two or more elements and/ or compounds

that can be separated

Homogeneous

A mixture in which

one substance (the solute) is uniformly

dissolved in another, resulting in a

uniform composition

heterogeneous

A mixture with an

uneven (non‑uniform) composition

Suspension

a mixture made of large

insoluble particles that settle to the

bottom of the liquid

colloid

mixture made of tiny

insoluble particles that remain

dispersed evenly in a liquid

Four Types Of Collids

Sol - Solid in Liquid (Milk)

Emulsion - Liquid in Liquid (Oil in Water)

Foam - Liquid in Gas (Whipped Cream)

Aerosol - Gas in liquid or solid (Smoke, Steam)

Solute

Any substance that can dissolve in another substance

Solvent

a substance that another substance dissolves in

Solution

a homogeneous mixture

in which one substance (the solute) is uniformly dissolved in another

Soluble

able to dissolve

Insoluble

does not dissolve

Concentration

the amount of a dissolved solute in a defined amount of solvent

C = m/v

C = concentration (g/L)

m = mass (g)

V = volume (L)