Practice Quiz

Praxis II General Science

Category - Chemistry

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A battery is a standard example of an electrochemical cell. Which part of a battery is being reduced when a battery is used?
  1. Positive end.
  2. Negative end.
  3. Middle.
  4. Outer shell.
  5. Both the positive and negative end.
Explanation
Answer: A - In a standard battery, a chemical reaction results in the production of electrons (current) that powers whatever device the battery is hooked up to. The negative end of a battery produces electrons and the positive end receives them. The positive end is thus gaining electrons and is being reduced.
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