Which reaction is an example of both a precipitation and a neutralization? (A) H3PO4(aq) + 3 KOH(aq) –→ K3PO4(aq) + 3 H2O(I) (B) FeC13(aq) + 3 KOH(aq) → Fe(OH)3(s) + 3 KCI(aq) (C) (NH4)2CO3(s) → 2 NH3(g) + CO2(g) + H20(1) (D) H2SO4(aq) + Ba(OH)2(aq) → BaSO4(s) + 2 H2O(1) (E) 2 C(s) + 02(g) → 2 CO(g) (11) * All of the statements regarding redox reactions are true except (A) a reducing agent causes another substance to be reduced. (B) halogens usually behave as oxidizing agents because they readily gain electrons. (C) metal ions are produced when pure metals are oxidized. (D) when a substance is oxidized its charge (or oxidation number) decreases. (E) alkali metals often behave as reducing agents because they readily lose electrons. (12) * In a typical oxidation-reduction reaction the electrons are transferred (A) from the oxidizing agent to the reducing agent. (B) from what is being oxidized to the substance being reduced. (C) from what is being reduced to the substance being oxidized. (D) from what is being oxidized to the reducing agent. (E) none of these.
Which reaction is an example of both a precipitation and a neutralization? (A) H3PO4(aq) + 3 KOH(aq) –→ K3PO4(aq) + 3 H2O(I) (B) FeC13(aq) + 3 KOH(aq) → Fe(OH)3(s) + 3 KCI(aq) (C) (NH4)2CO3(s) → 2 NH3(g) + CO2(g) + H20(1) (D) H2SO4(aq) + Ba(OH)2(aq) → BaSO4(s) + 2 H2O(1) (E) 2 C(s) + 02(g) → 2 CO(g) (11) * All of the statements regarding redox reactions are true except (A) a reducing agent causes another substance to be reduced. (B) halogens usually behave as oxidizing agents because they readily gain electrons. (C) metal ions are produced when pure metals are oxidized. (D) when a substance is oxidized its charge (or oxidation number) decreases. (E) alkali metals often behave as reducing agents because they readily lose electrons. (12) * In a typical oxidation-reduction reaction the electrons are transferred (A) from the oxidizing agent to the reducing agent. (B) from what is being oxidized to the substance being reduced. (C) from what is being reduced to the substance being oxidized. (D) from what is being oxidized to the reducing agent. (E) none of these.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:(10) * Which reaction is an example of both a precipitation and a neutralization?
(A) H3PO4(aq) + 3 KOH(aq) –→ K3PO4(aq) + 3 H2O(1)
(B) FeC13(aq) + 3 KOH(aq) → Fe(OH)3(s) + 3 KCI(aq)
(C) (NH4)2CO3(s) → 2 NH3(g) + CO2(g) + H20(1)
(D) H2SO4(aq) + Ba(OH)2(aq) → BaSO4(s) + 2 H2O(1)
(E) 2 C(s) + 02(g) → 2 CO(g)
(11) * All of the statements regarding redox reactions are true except
(A) a reducing agent causes another substance to be reduced.
(B) halogens usually behave as oxidizing agents because they readily gain electrons.
(C) metal ions are produced when pure metals are oxidized.
(D) when a substance is oxidized its charge (or oxidation number) decreases.
(E) alkali metals often behave as reducing agents because they readily lose electrons.
(12)
In a typical oxidation-reduction reaction the electrons are transferred
(A) from the oxidizing agent to the reducing agent.
(B) from what is being oxidized to the substance being reduced.
(C) from what is being reduced to the substance being oxidized.
(D) from what is being oxidized to the reducing agent.
(E) none of these.
(13) * In the redox reaction shown,
is oxidized and becomes
Fe(s) + CuCl2 aq)→
Cu(s) + FeC12(aq)
(A) Fe; Fe+
(B) Fe; Fe2+
(C) Cu; Cu2+
(D) Cu2+; Cu
(E) none of
the above
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