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ELECTROCHEMISTRY
Make a Printed Circuit Board—
The Gold Rush—Turning Pennies into Silver and Gold—Chemical Demonstration Kit
Demonstrate to your students what the alchemists only dreamed about. Turn an ordinary copper penny into silver and then into gold. Students will watch as you place pennies into a chemical solution that turns the pennies silver. Then, over heat, the silver penny will change into “gold.” Teacher Demonstration Notes included.
Electroplating with Copper—
Student Laboratory Kit
Student Laboratory Kit
With this kit, students use photo engraving and chemical etching to generate printed circuit boards. The copper boards are coated with a positive photo-resist, which becomes soluble in basic solutions following exposure to light. Exposed copper is then removed through a redox reaction with iron(III) chlo- ride. Complete for 24 students working in groups of three.
See free video at flinnsci.com.
AP9675 | $95.00
Mimic the everyday process of electroplat- ing with this easy-to-perform lab. Pre- and post-lab activities help students relate the non-spontaneous process of electroplat- ing to the Law of Conservation of Matter, oxidation–reduction reactions, anode and cathode and Faraday’s Law. Reproducible student handout and Teacher Notes include answer keys, sample data and calculations. Complete for 30 students working in pairs AP6132 | $60.60
AP8895 | $26.95
Demonstrate simple electrolysis in a colorful and dramatic way on your overhead projector. A 9-V battery supplies the power and universal indicator provides the color show. As electroly-
sis occurs in the Petri dish, the pH changes at the anode and cathode are different—around the cathode, immediately purple as hydrogen gas bubbles form; at the anode, orange/red as oxygen is produced. Across the Petri dish, the entire spectrum of universal color changes occur reflecting the pH continuum. Teacher Demonstration Notes are included.
AP6467 | $26.25
FLINN SCIENTIFIC I ELECTROCHEMISTRY
Stop-’N-Go-Light—Chemical Demonstration Kit
When you shake this flask of solution, the color of the solution will turn from a soft yellow to a bright red to a light, grassy green and then shift back to yellow again. Your students will love this reaction because they can help shake the flask and actually make the reaction take place. Teacher Notes included.
See free video at flinnsci.com.
AP2083 | $21.55
More than 2,000 chemicals at flinnsci.com
Colorful Electrolysis—
Chemical Demonstration Kit
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CHEMISTRY