Matter part 1 II. Classification of Matter  Pure Substances  Mixtures  Matter Flowchart.

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Matter part 1 II. Classification of Matter  Pure Substances  Mixtures  Matter Flowchart

A. Pure Substances  Element  composed of identical atoms  EX: copper wire, aluminum foil

A. Pure Substances  Compound  composed of 2 or more elements in a fixed ratio  properties differ from those of individual elements  EX: table salt (NaCl)

B. Mixtures  Variable combination of 2 or more pure substances. Heterogeneous (Non-uniform) Homogeneous (Uniform)

B. Mixtures  Solution  homogeneous  very small particles Tyndall Effect  particles don’t settle  EX: rubbing alcohol

C. Matter Flowchart MATTER Can it be physically separated? Homogeneous Mixture (solution) Heterogeneous MixtureCompoundElement MIXTUREPURE SUBSTANCE yesno Can it be chemically decomposed? noyes Is the composition uniform? noyes

C. Matter Flowchart  Examples:  graphite  pepper  sugar (sucrose)  paint  soda element hetero. mixture compound hetero. mixture solution