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Learning outcomes for this UNIT:
Learning outcomes for this UNIT:
By the end of the topic, learners will be able to:
• Explain that a cell is a system in which certain chemical reactions can cause the flow of electricity through an external circuit
• Identify cells as a source of electricity
• Describe a battery as a group of connected cells.
Electric cells
Electric cells
(a) An electric cell refers to a system where chemical reactions result in the flow of electricity.
(b)The flow of electricity occurs through the external circuit.
(c) An electric circuit is a closed loop through which electric current flows.
(d) A battery is made of two or more cells connected.
(e) The following zinc–copper cell uses one of the solutions in the saltbridge.
Complete this activity in your books and upload a picture on Google Classroom. A link will be opened named Classwork Electric Cells.
1. What do we call the cell shown in the diagram?
2. Mention the two electrodes used in the cell?
3. What are the two salts used in the solutions?
4. Looking at the direction of the arrow, which one between zinc and copper donates electrons?
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ADDITIONAL RESOURCES:
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