Multiple Choice
Consider a voltaic cell that corresponds to the following reaction: Fe(s) + Ni2+(aq) → Fe2+(aq) + Ni(s) Which of the following statements is correct?
A) Iron is the oxidizing agent.
B) The Ni2+ solution must be in the half-cell with the iron electrode.
C) No salt bridge is necessary, since the charge is 2+ on both sides of the equation.
D) The nickel electrode is the cathode.
E) Four electrons will be transferred per atom of iron that reacts.
Correct Answer:
Verified
Correct Answer:
Verified
Q26: Consider the reaction: CH<sub>4</sub>(g)+ 2O<sub>2</sub>(g)→ CO<sub>2</sub>(g)+ 2H<sub>2</sub>O(g)Which
Q27: Consider the reaction: Sn<sup>2+</sup>(aq)+ 2Fe<sup>3+</sup>(aq)→ Sn<sup>4+</sup>(aq)+ 2Fe<sup>2+</sup>(aq)Which
Q28: The figure shows the electrolysis of molten
Q29: Consider the reaction: H<sub>2</sub>O(l)+ 3SO<sub>3</sub><sup>2−</sup>(aq)+ 2MnO<sub>4</sub><sup>−</sup>(aq)→ 3SO<sub>4</sub><sup>2−</sup>(aq)+
Q30: Consider the reaction: Zn(s)+ H<sub>2</sub>SO<sub>4</sub>(aq)→ ZnSO<sub>4</sub>(aq)+ H<sub>2</sub>(g)Which
Q32: Consider the reaction: Zn(s)+ NO<sub>3</sub><sup>−</sup>(aq)→ NH<sub>3</sub>(aq)+ Zn(OH)<sub>4</sub><sup>2−</sup>(aq)When
Q33: Reduction is a chemical process in which
Q34: Consider the half-reaction O<sub>2</sub>(aq)→ OH<sup>-</sup>(aq). When the
Q35: What are the oxidation numbers of the
Q36: In which of the following choices is