61) In which compound is the oxidation state of hydrogen not +1? A) H2O B) H2O2 C) NaH D) Na2HSO4 62 1 answer below »

 

61) In which compound is the oxidation state of hydrogen not +1?

A) H2O

B) H2O2

C) NaH

D) Na2HSO4

62) What is the oxidation number change for the manganese atom in the following unbalanced reduction half reaction:

MnO4-(aq) + H+(aq) → Mn2+(aq) + H2O(l)?

A) -7

B) -5

C) +5

D) +7

63) What is the oxidation number change for the iron atom in the reaction:

2 Fe2O3(s) + 3 C(s) → 4 Fe(s) + 3 CO2(g)?

A) -6

B) -3

C) +3

D) +6

64) Which species functions as the oxidizing agent in the following reduction-oxidation reaction:

Zn(s) + Cu2+(aq) → Cu(s) + Zn2+(aq).

A) Cu(s)

B)  Cu2+(aq)

C) Zn(s)

D) Zn2+(aq)

65) Which species functions as the oxidizing agent in the following reduction-oxidation reaction:

5 Fe2+(aq) + MnO4-(aq) + 8 H+(aq) → Mn2+(aq) + 5 Fe3+(aq) + 4 H2O(l)?

A) Fe2+(aq)

B) H+(aq)

C) Mn2+(aq)

D) MnO4-(aq)

66) Which species functions as the reducing agent in the following reduction-oxidation reaction:

2 P(s) + 3 Br2(l) → 2 PBr3(l)?

A) Br-(aq)

B) Br2(l)

C) P(s)

D) P3+(aq)

67) Which species functions as the reducing agent in the following reduction-oxidation reaction:

ZnO(s) + C(s) → Zn(s) + CO(g)?

A) C(s)

B) CO(g)

C) Zn(s)

D) ZnO(s)

68) Using the following portion of the activity series for oxidation half-reactions, determine which combination of reactants will result in a reaction.

Na(s) → Na+(aq) + e-

Cr(s) → Cr3+(aq) + 3e-

A) Na(s) with Cr(s)

B) Na(s) with Cr3+(aq)

C) Na+(aq) with Cr3+(aq)

D) Na+(aq) with Cr(s)

69) Using the following portion of the activity series for oxidation half reactions

K(s) → K+(aq) + e-

Al(s) → Al3+(aq) + 3e-

Fe(s) → Fe2+(aq) + 2e-

Sn(s) → Sn2+(aq) + 2e-

determine which reaction will occur.

A) Al3+(aq) with Fe(s)

B) Al(s) with Sn(s)

C) K+(aq) with Fe2+(aq)

D) K(s) with Sn2+(aq)

70) Using the following portion of the activity series for oxidation half reactions

Ca(s) → Ca2+(aq) + 2e-

Mg(s) → Mg2+(aq) + 2e-

Zn(s) → Zn2+(aq) + 2e-

Cu(s) → Cu2+(aq) + 2e-

determine which reaction will not occur.

A) Ca(s) with Cu2+(aq)

B) Ca(s) with Zn2+(aq)

C) Zn(s) with Cu2+(aq)

D) Zn(s) with Mg2+(aq)