<p> Element/Compound/Mixture Lab</p><p>Part 1: Follow the directions for the Paper Chromatography Lab. </p><p>Directions:</p><p>• Create a long strip by cutting the coffee filter. •Use a black sharpie and draw a thick line near the bottom of the filter paper - about ¼ inch from the bottom. - poke a hole with a pencil or pen at the top of the strip. The paper will hang from the pencil in the beaker. • Pour a small amount of water with a little rubbing alcohol into a beaker and then hang the paper strip. Make sure the ink line does not touch the water – only the bottom of the filter paper. *Let sit and return back to this in the analysis section of the lab.</p><p>Part 2: Follow directions and use the table below to answer the following questions. </p><p>1. Identify the category of matter. Is it a pure substance? 2. If so then is it an element or is it a compound? 3. Is the mixture or substance Heterogeneous or Homogeneous? 4. If a mixture, devise a way to separate the mixture. </p><p>Substance Element, Heterogeneous If a mixture, Devise a way to separate? Name Compound, or or Homogenous Mixture</p><p>Aluminum Foil</p><p>Salt, Sand, and water Substance Element, Heterogeneous If a mixture, Devise a way to separate? Name Compound, or or Homogenous Mixture</p><p>Oil and Vinegar Salad Dressing</p><p>Iron and Sulfur</p><p>Soda</p><p>Cereal</p><p>Stearic Acid</p><p>Zinc</p><p>Orange Juice with Pulp Substance Element, Heterogeneous If a mixture, Devise a way to separate? Name Compound, or or Homogenous Mixture</p><p>Analysis Questions:</p><p>1. Define the difference between a homogenous and heterogeneous mixture.</p><p>2. Provide 3 examples of a homogenous mixture (other then what you saw today).</p><p>3. Provide 3 examples of a heterogeneous mixture (other then what you saw today).</p><p>4. Give an example of a pure substance, element or compound, that is heterogeneous.</p><p>5. Give an example of a pure substance, element or compound, that is homogenous. </p><p>6. Is the paper chromatography a mixture? Provide a rationale for your answer. 5. Classify each of the following as:</p><p>-element (ele) or compound (com) or mixture (m) -then classify each as homogenous (hom) or heterogeneous (het)</p><p>(a) spaghetti sauce (g) glass </p><p>(b) table sugar (h) river water </p><p>(c) cough syrup (i) nitrogen </p><p>(d) silver (j) a pine tree </p><p>(e) orange juice (k) oxygen </p><p>(f) iced tea (l) air </p>