Colorful Electrolysis

Electrolysis is the decomposition of a solution by using a electrical current. Chemical changes occur during this process. The electrodes act a conductors where electron transfer take place. The flow of electrons are from the anode (positive electrode-the site of oxidation), to the cathode (negative electrode - site of reduction). Students will explore chemical changes by observing the Electrolysis of potassium iodide, copper (II) bromide, and sodium chloride solutions. Students will use their observations to identify the products formed at the anode and the cathode in the electrolysis of each solution.

Resource ID#: 125960 Type: Learning Goal

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General Information

Subject(s): Science

Grade Level(s): 8

Intended Audience: Educators

Suggested Technology: Document Camera, Overhead Projector

Instructional Time: 50 Minute(s)

Keywords: physical change, chemical change, electrolysis

Instructional Component Type(s): Learning Goal, Unit/Lesson Sequence, Worksheet,

Resource Collection: FCR-STEMLearn Physical Sciences

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