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What is the reducing agent in the following reaction?Cr3+ + 3Na 3Na+ + Cr
A
Cr3+ because it loses electronsB
Na because it loses electronsC
Cr3+ because it gains electronsD
Na because it gains electrons22
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Which type of reaction occurs in the following equation?3ClO(aq) ClO(aq) + 2Cl(aq)
A
an oxidation reactionB
a reduction reactionC
a synthesis reactionD
a disproportionation reaction23
Consider the redox reaction below.Which half reaction correctly describes the oxidation that is taking place?
A
Upper Z n superscript 2 plus (s) plus 2 e superscript minus (a q) right arrow upper Z n (s).
B
Upper Z n (s) right arrow upper Z n superscript 2 plus (a q) plus 2 e superscript minus.
C
2 upper H superscript plus, plus 2 e superscript minus right arrow upper H subscript 2.
D
Upper H subscript 2 plus 2 e superscript minus right arrow 2 upper H superscript plus.
24
Zn(s) + 2H+(aq) Zn2+(aq) + H2(g) has an overall reduction potential of 0.76 V. Therefore,
A
the reaction is not spontaneous and will require energy to proceed.B
the reaction is spontaneous and will proceed without any energy input.C
the reduction potentials cancel out and prevent any reaction.D
the forward and reverse reactions are each spontaneous.25
Given the reaction below, which is being oxidized?Mg + Cl2 Mg2+ + 2Cl–
A
2CI–B
CI2C
MgD
Mg2+Did you find these answers helpful?
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