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In the following equation, which reactant is being oxidised? 2I- + 2Fe3+ → I2 + 2Fe2+ In the following equation, which reactant is being reduced? 2Ag+ + Pb → 2Ag + Pb2+ In the following equation, how many electrons are transferred when one zinc atom reacts with one copper (II) ion? Zn (s) + Cu2+ (aq) ⇋ Zn2+ (aq) + Cu (s) In the following equation, how many electrons are transferred when one mole of zinc atoms react with one mole copper (II) ions? Zn (s) + Cu2+ (aq) ⇋ Zn2+ (aq) + Cu (s) The following reaction has K > 1. i.e. the product side of the arrow is favored. Br2 (aq) + Hg (s) ⇋ 2Br- (aq) + Hg2+ (aq) Identify: The substance that is oxidized. The substance that is reduced. The reducing agent. The oxidizing agent. The number of moles of electrons transferred when one mole of reaction takes place. You may find it helpful to write out the two half equations.

In the following equation, which reactant is being oxidised? 2I- + 2Fe3+ → I2 + 2Fe2+ In the following equation, which reactant is being reduced? 2Ag+ + Pb → 2Ag + Pb2+ In the following equation, how many electrons are transferred when one zinc atom reacts with one copper (II) ion? Zn (s) + Cu2+ (aq) ⇋ Zn2+ (aq) + Cu (s) In the following equation, how many electrons are transferred when one mole of zinc atoms react with one mole copper (II) ions? Zn (s) + Cu2+ (aq) ⇋ Zn2+ (aq) + Cu (s) The following reaction has K > 1. i.e. the product side of the arrow is favored. Br2 (aq) + Hg (s) ⇋ 2Br- (aq) + Hg2+ (aq) Identify: The substance that is oxidized. The substance that is reduced. The reducing agent. The oxidizing agent. The number of moles of electrons transferred when one mole of reaction takes place. You may find it helpful to write out the two half equations.

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter3: Chemical Reactions
Section: Chapter Questions
Problem 45PS
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In the following equation, which reactant is being oxidised?

2I- + 2Fe3+ → I2 + 2Fe2+

In the following equation, which reactant is being reduced?

2Ag+ + Pb → 2Ag + Pb2+

In the following equation, how many electrons are transferred when one zinc atom reacts with one copper (II) ion?

Zn (s) + Cu2+ (aq) ⇋ Zn2+ (aq) + Cu (s)

In the following equation, how many electrons are transferred when one mole of zinc atoms react with one mole copper (II) ions?

Zn (s) + Cu2+ (aq) ⇋ Zn2+ (aq) + Cu (s)

The following reaction has K > 1. i.e. the product side of the arrow is favored.

Br2 (aq) + Hg (s) ⇋ 2Br- (aq) + Hg2+ (aq)

Identify:

  1. The substance that is oxidized.
  2. The substance that is reduced.
  3. The reducing agent.
  4. The oxidizing agent.
  5. The number of moles of electrons transferred when one mole of reaction takes place.

You may find it helpful to write out the two half equations.

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