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Most elements are not found in nature in their free, or elemental, forms. They usually combine with other elements to form compounds. This series of 4 demonstrations isolates 4 elements from compounds and illustrates multiple reaction types along the way. Students make predictions prior to, and construct particle-level explanations after, the isolation of copper, oxygen, carbon, and hydrogen. Materials are sufficient for the 4 demonstrations to be performed 5 times.
Students are engaged and active participants during these demonstration activities as they predict the reaction and discuss their observations. This series of 4 teacher-led demonstrations isolates 4 elements from compounds and illustrates multiple reaction types along the way. Students make predictions prior to, and construct particle-level explanations after, the displacement of copper from copper sulfate, the decomposition of hydrogen peroxide into water and oxygen, the decomposition of sucrose into elemental carbon, and the isolation of hydrogen from the single replacement reaction of magnesium and hydrochloric acid. Real-world and career applications and common student misconceptions are provided for class discussion. This demonstration kit is great as an introduction to a chemistry course, during a discussion of elements and the periodic table, as practice in writing and balancing chemical reactions, and in a study of reaction types. Materials are sufficient for the 4 demonstrations to be performed 5 times.
|20% Copper (II) Sulfate, 30 mL||1||Included|
|1 M Hydrochloric Acid, 30 mL||2||Included|
|3% Hydrogen Peroxide, 473 mL||1||Included|
|Magnesium Metal Ribbon, 45 cm||1||Included|
|Dry Yeast, Packet||1||Included|
|Plastic Tubing, 18”||1||Included|
|Rubber Stopper, 1-Hole, Size 4||1||Included|
|Test Tube, Small||1||Included|
|Test Tube, Medium||2||Included|
|Test Tube, Large||2||Included|
|Teacher’s Manual with Reproducible Student Sheets||1||Included|
|Graduated Cylinder, 10 mL||3||Needed, Not Included|
|Beaker, 100 mL||1||Needed, Not Included|
|Bunsen Burner||1||Needed, Not Included|
|Ring Stand||1||Needed, Not Included|
|Iron Ring||1||Needed, Not Included|
|Test Tube Rack||1||Needed, Not Included|
|Tongs||1||Needed, Not Included|
|Wire Gauze||1||Needed, Not Included|
|Gloves||Needed, Not Included|
|Lab Coat or Apron||Needed, Not Included|
|Matches||Needed, Not Included|
|Scissors||Needed, Not Included|
|Safety Goggles||Needed, Not Included|
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