تم الحل ✓
categoryكيمياء
schoolبكالوريوس
event_available2026-07-13
السؤال
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36. What element is undergoing reduction (if any) in the following reaction?
Zn(s) + 2 AgNO3(aq)
A) Zn
B) N
C) O
Zn(NO3)2(aq)+2 Ag(s)
D) Ag
E) This is not an oxidation-reduction reaction.
37. Determine the oxidizing agent in the following reaction.
Ni(s)+2 AgClO4(aq)
Ni(ClO4)2(aq)+2 Ag(s)
A) Ag
B) Ni
C) Cl
D) O
E) This is not an oxidation-reduction reaction.
38. Considering the following reaction, what statement is incorrect?
Cu (s) + 4 H* (aq) + 2 NO: (aq) → Cu2+ (aq) + 2 NO2 (g) +2 H₂O (1)
A) NO is the oxidizing agent.
B) Cu is oxidized.
C) Cu2+ is the result of an oxidation.
D) NO, is reduced.
E) Cu is the oxidizing agent.
39. Metals react with oxygen gas to produce oxides with the general formula M,Oy. Write a balanc
chemical equation for the reaction of iron to yield Iron(II) oxide.
A) 4 Fe(s) + O2(g) → 2 Cu2O(s)
B) Fe + O2(g) -
FeO₂(s)
C) 2 Fe(s) + O2(g) → 2 FeO(s)
D) Fe(s) + O(g)
E) 2 Fe(s) + O(g)
-
FeO(s)
2 Fe₂O(s)
40. Which of the following reactions is not a redox reaction? Some of the reactions may not be
A) H+OH H₂O
B) Bi+Fe3+.
BiO3+ Fe2+
C) Ni2++ Fe3+Fe²++ Ni
D) 2 Al+Fe2O3 →2 Fe + Al2O3
E) NH3+NO→ N2 + H2O
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