Oxidation-Reduction Answers
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Consider the following reaction.CO2(g) + H2(g) CO(g) + H2O(l) What is being oxidized?
A
carbonB
carbon dioxideC
oxygenD
hydrogen3
Which best identifies why the rusting of an iron nail in the presence of water and oxygen is an oxidation-reduction reaction?
A
Water is a reactant.B
Electrons are transferred.C
Nonmetals and a metal are involved.D
Energy is released.4
Which of the following is a simple definition of oxidation?
A
the loss of electronsB
the gain of electronsC
an agent that oxidizes somethingD
an agent that reduces something
6
Which of the following is true about a redox reaction?
A
In a redox reaction, the reducing agent loses electrons.B
In a redox reaction, the oxidizing agent loses electrons.C
In a redox reaction, the oxidized species gains electrons.D
In a redox reaction, the reduced species loses electrons.7
Which of the following is an oxidation-reduction reaction?
A
ZnS(s) + 2O2(g) ZnSO4(s)
B
CaO(s) + H2O(l) Ca(OH)2(s)
C
6Li2O(s) + P4O10(g) 4Li3PO4(s)
D
SO2(g) + H2O(l) H2SO3(aq)
9
Which describes the oxidizing agent in a chemical reaction?
A
the substance that is oxidized because it loses electronsB
the substance that is reduced because it loses electronsC
the substance that is oxidized because it gains electronsD
the substance that is reduced because it gains electrons10
Which identifies an oxidation-reduction reaction?
A
a double replacement reactionB
a neutralization reactionC
a reaction in which oxidation numbers changeD
a reaction in which no electrons are transferredDid you find these answers helpful?
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