Concept Map of 1.1 & 1.2

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Pure Substance

Has a constant composition

Mixture

Heterogeneous Mixture

Properties are not uniform throughout.

Homogeneous Mixture

Uniform composition and properties throughout

Concept Map of 1.1 & 1.2

Matter

Mole

Atomic Mass

The mass of one mole of a substance

Particle

Atom

Molecule

Molecular Formula

The actual formula of a molecule or ionic compound as it exists in nature

Polyatomic Ion

An umbrella term referring to a single unit of a substance

Ion

Compound

Emperical Formual

The formula of a molecule or compound using lowest whole number ratios

Element

% composition by mass

The % by Mass of an element in a formula

Formula Units

The smallest whole number rations for each elements of an ionic compound