Chemistry

In the chemical reaction, .
Zn(s) + CuSO4(aq) �¨ ZnSO4(aq) + Cu(s),
(A) metallic zinc is the reducing agent.
(B) metallic zinc in reduced.
(C) copper ion is oxidized.
(D) sulfate ion is the oxidizing agent.

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asked by LT
  1. Remember the definitions.
    Oxidation is the loss of electrons.
    Reduction is the gain of electrons.
    (The material oxidized is the reducing agent; therefore, the reducing agent loses electrons. The material reduced is the oxidizing agent; therefore, the oxidizing agent gains electrons).
    Zn is zero on the left and +2 on the right.
    Cu is +2 on the left and zero on the right.
    S is +6 on both sides.
    O is -2 on both sides.
    From those definitions AND I have given you the oxidation states, you should be able to pick out the answer.

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  2. is the answer C

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    posted by LT
  3. The answer is not C.
    The reaction shows Cu going from Cu^+2 to Cu or from +2 to zero. That is the gain of electrons. Oxidation is the loss of electrons. It can't be C.

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  4. Then A because its going from 0 to +2

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    posted by LT
  5. Right. Metallic Zn is the reducing agent (it is oxidized in the process).

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