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Extra Credit Chemistry-Redox

Quiz by Oanh Lo

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9 questions
Show answers
  • Q1
    What is the oxidation state of nitrogen in the compound NH4Br?
    -1
    -3
    +2
    +4
    30s
  • Q2
    n an oxidation-reduction reaction, the number of electrons lost is
    equal to the number of electrons gained
    less than the number of protons gained
    equal to the number of protons gained
    less than the number of electrons gained
    30s
  • Q3
    A voltaic cell converts chemical energy to
    nuclear energy without an external power source
    electrical energy with an external power source
    electrical energy without an external power source
    nuclear energy with an external power source
    30s
  • Q4
    In an operating voltaic cell, reduction occurs
    at the cathode
    at the wire
    at the salt bridge
    at the anode
    30s
  • Q5
    Which process occurs in an operating voltaic cell?
    Electrical energy is converted to chemical energy.
    Reduction takes place at the anode.
    Chemical energy is converted to electrical energy.
    Oxidation takes place at the cathode.
    30s
  • Q6
    An electrolytic cell differs from a voltaic cell because an electrolytic cell
    generates its own energy from a nonspontaneous physical reaction
    requires an outside energy source for a nonspontaneous chemical reaction to occur
    generates its own energy from a spontaneous physical reaction
    requires an outside energy source for a spontaneous chemical reaction to occur
    30s
  • Q7
    Which metal will spontaneously react with Zn2+(aq), but will not spontaneously react with Mg2+(aq)?
    Cu
    Ni
    Ba
    Mn
    30s
  • Q8
    Which metal reacts spontaneously with a solution containing zinc ions?
    Copper
    Silver
    Nickel
    Magnesium
    30s
  • Q9
    Based on Reference Table J, which metal will react spontaneously with Al3+?
    Co
    Cr
    Cu
    Ca
    30s

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