Electrochemistry

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Sample objectives

What this unit covers

• Electrolysis: Explain electrolysis as the breakdown of an ionic compound when it is either molten or dissolved in water, facilitated by an electric current.
• Electrolysis: Recognize the components of basic electrolytic cells: (a) the anode is the positive electrode, (b) the cathode is the negative electrode, and (c) the electrolyte is the molten or aqueous substance undergoing electrolysis.
• Hydrogen-oxygen fuel cells: Identify that a hydrogen-oxygen fuel cell generates electricity by utilizing hydrogen and oxygen, resulting in water as the sole chemical byproduct.
• Hydrogen-oxygen fuel cells: Explain the pros and cons of employing hydrogen-oxygen fuel cells compared to gasoline or petrol engines in vehicles.