A Wine B Beef stew C Iron D Carbon dioxide mixture homogeneous mixture

A wine b beef stew c iron d carbon dioxide mixture

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A. Wine B. Beef stew C. Iron D. Carbon dioxide mixture; homogeneous mixture; heterogeneous pure; element pure; compound
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pure; compound A. B. mixture; heterogeneous mixture; homogenous D. pure; element C. Question 5: Classify each diagram as a pure substance or a mixture; then element/ compound and homogeneous/heterogeneous.
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Separating Mixtures Examples: Substance purification Seawater desalination Oil refining Production of alcohol
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Physical Separation Methods Decanting - separating a heterogeneous mixture with particle size, e.g., sand and water, iron filings and water Filtration - separating a heterogeneous mixture using a filter
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Physical Separation Methods Distillation – separating homogeneous mixtures with different volatilities Examples: Oil refining Seawater desalination Alcohol production
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Physical Changes Changes in Matter Chemical Changes Changes that alter state or appearance (not composition) Changes that alter chemical composition
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Physical Changes When water boils, it changes into a gas Its chemical composition is not changed Water molecules are the same in the gas phase as in the liquid phase
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Chemical Changes The rusting of iron is a chemical change The iron atoms combine with oxygen in the air to form a different chemical substance (iron oxide)
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Properties of Matter
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  • Spring '08
  • Chemistry, physical form

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