8. Consider the following reaction
Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)
a. Is zinc oxidized or is it reduced?
b. Is copper(II) ion oxidized or is it reduced?
c. What is the oxidizing agent?
d. What is the reducing agent?
8. Consider the following reaction Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) a. Is zinc oxidized or is it reduced?
2017-02-17 8:29 am
回答 (1)
2017-02-17 9:06 am
8.
a.
The oxidation number of Zn in the reactant Zn metal = 0
The oxidation number of Zn in the product ZnSO₄ (Zn²⁺) = +2
Zn is oxidized because the oxidation number increases.
b.
The oxidation number of Cu in the reactant Cu²⁺ ion = +2
The oxidation number of Cu in the product Cu metal = 0
Cu²⁺ ion is reduced because the oxidation number decreases.
c.
Copper(II) ion is the oxidizing agent.
d.
Zinc is the reducing agent.
a.
The oxidation number of Zn in the reactant Zn metal = 0
The oxidation number of Zn in the product ZnSO₄ (Zn²⁺) = +2
Zn is oxidized because the oxidation number increases.
b.
The oxidation number of Cu in the reactant Cu²⁺ ion = +2
The oxidation number of Cu in the product Cu metal = 0
Cu²⁺ ion is reduced because the oxidation number decreases.
c.
Copper(II) ion is the oxidizing agent.
d.
Zinc is the reducing agent.
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