Introduction to Electrochemistry
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Questions and Answers

Which electrode in an electrochemical cell is responsible for oxidation?

  • Anode (correct)
  • Cathode
  • Wire
  • Zinc
  • What is the purpose of the porous barrier or salt bridge in an electrochemical cell?

  • Accelerate the redox reaction
  • Prevent charge from building up on the electrodes (correct)
  • Increase the flow of electrons
  • Isolate the two electrodes completely
  • Which part of an electrochemical cell experiences a reduction reaction?

  • Cathode (correct)
  • Electrolyte solution
  • Wire
  • Anode
  • In a homemade lemon battery, what does the LED light up indicate?

    <p>Successful completion of the circuit</p> Signup and view all the answers

    What happens at the cathode in an electrochemical cell?

    <p>Electrons are gained</p> Signup and view all the answers

    If a student's LED does not light up in a lemon battery experiment, what could be a likely reason?

    <p>Impure zinc-coated nail</p> Signup and view all the answers

    What is the role of the wire in an electrochemical cell circuit?

    <p>Transfer electrons between electrodes</p> Signup and view all the answers

    Why are the two electrodes in an electrochemical cell placed in separate compartments?

    <p>To prevent charge build-up</p> Signup and view all the answers

    What is the main purpose of electrochemistry?

    <p>To transform chemical energy into electrical energy</p> Signup and view all the answers

    What happens in an electrochemical cell?

    <p>Chemical energy is converted into electrical energy</p> Signup and view all the answers

    In an electrochemical cell, what is the function of the electrolyte?

    <p>To conduct electricity</p> Signup and view all the answers

    Which part of an electrochemical cell is where reduction takes place?

    <p>Cathode</p> Signup and view all the answers

    What is the purpose of the wire connecting the cathode and anode in an electrochemical cell?

    <p>To complete the circuit for electron flow</p> Signup and view all the answers

    Why are batteries considered examples of electrochemistry?

    <p>Because they transform chemical energy to electrical energy</p> Signup and view all the answers

    Which component of a battery acts as the electrode where electrons are gained?

    <p>Copper strip</p> Signup and view all the answers

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