Chemistry: Classifying Matter 1. Define matter, pure, mixture, element, compound, solution and mechanical mixture. 2. Classify each of the materials below. In the center column, state whether the material is a pure substance or a mixture. If the material is a pure substance, further classify it as either an element or compound in the right column. Similarly, if the material is a mixture, further classify it as homogeneous or heterogeneous in the right column. Write the entire word in each space to earn full credit. Material Pure Substance or Mixture M Element, Compound, Solution, Mechanical Mixture MM sugar + pure water (C12H22O11 + H2O) iron filings (Fe) M S P E limestone (CaCO3) P C orange juice (w/pulp) M MM Pacific Ocean M MM or S air inside a balloon M S aluminum (Al) P E magnesium (Mg) P E acetylene (C2H2) P C tap water in a glass M S soil M MM pure water (H2O) P C chromium (Cr) P E Chex mix M MM salt + pure water (NaCl + H2O) benzene (C6H6) M S P C muddy water M MM brass (Cu mixed with Zn) baking soda (NaHCO3) M S P C concrete

Classifying Matter in Chemistry

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