Chemical Cells and Batteries | GCSE Chemistry Practice
Cells contain chemicals which react to produce electricity through redox reactions.
Why do rechargeable batteries work?
What is Chemical Cells and Batteries | Practice?
"A system in which chemical energy is converted into electrical energy."
What are the two main components needed to make a simple chemical cell?
Which combination of metals in a cell will produce the HIGHEST voltage?
Why can rechargeable batteries be used again after they go flat?
Cell Principles
Simple cell: Two different metals in an electrolyte.
The greater the difference in reactivity, the greater the potential difference.
Non-rechargeable: Chemical reactions stop when one reactant is used up.
Rechargeable: Chemical reactions can be reversed by an external current.
Core Fact: The voltage produced depends on the metal type and the electrolyte used.
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