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Batteries and Electricity quiz #1

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Terms in this set (10)

  • Which two compounds are commonly used in batteries?
    Zinc and manganese dioxide are commonly used in batteries, such as dry cell and alkaline batteries.
  • What essential parts are needed to make a battery?
    A battery requires a positive electrode (cathode), a negative electrode (anode), and an electrolyte to allow ion flow.
  • What element is commonly used in batteries?
    Zinc is a commonly used element in batteries, serving as the anode in dry cell and alkaline batteries.
  • Dry cell batteries are used to power radios, watches, and cell phones.
    Dry cell batteries are used to power radios, watches, and cell phones.
  • What type of battery is typically used to run a moving toy?
    Alkaline batteries are typically used to run moving toys.
  • What element is commonly used in batteries?
    Zinc is commonly used in batteries.
  • What is the role of the carbon rod in a dry cell battery?
    The carbon rod acts as the positive electrode (cathode) in a dry cell battery, where reduction occurs.
  • Why is the paste in a dry cell battery considered acidic?
    The paste contains ammonium chloride, which is weakly acidic due to the presence of ammonium ions.
  • What is the function of potassium hydroxide in an alkaline battery?
    Potassium hydroxide serves as the basic electrolyte in an alkaline battery, allowing ion flow between electrodes.
  • How much voltage does a typical dry cell battery generate?
    A typical dry cell battery generates about 1.50 volts based on the difference between cathode and anode potentials.