Question

For each of the following equations a) what species is oxidized b) what species is reduced...

For each of the following equations

a) what species is oxidized

b) what species is reduced

c) what is the oxidizing agent

d) what is the reducing agent

EQUATION 1

ClO- + 2 H+ + 2e- --> Cl- + H2O

2 I- --> I2 + 2 e

_________________________________

ClO- + 2 H+ + 2 I- --> Cl- + I2 + H2O

EQUATION 2

2 S2O3 2- --> S4O6 2- + 2 e

I2 + 2 e- --> 2 I-

_________________________________

2 S2O3 2- + I2 --> S4O6 2- + 2 I

EQUATION 3

ClO- + 2 H+ + 2 I- --> Cl- + I2 + H2O

2 S2O3 2- + I2 --> S4O6 2- + 2 I

______________________________________

ClO- + 2 H+ + 2 S2O3 2- --> Cl- + H2O + S4O6 2-

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Homework Answers

Answer #1

EQUATION 1

ClO- + 2 H+ + 2e- --> Cl- + H2O; ClO- is being reduced ... H+ is the reducing agent

2 I- --> I2 + 2 e ; I-2 is being oxidized ... ClO- is the oxidiziung agent

EQUATION 2

2 S2O3 2- --> S4O6 2- + 2 e; S2O3 2- this is being oxidized; it is the reducing agent

I2 + 2 e- --> 2 I-; I2 is being reducied, it is the oxidizing agent

EQUATION 3

ClO- + 2 H+ + 2 I- --> Cl- + I2 + H2O ; ClO- is being reduced, ; it acts as oxidizing agents

2 S2O3 2- + I2 --> S4O6 2- + 2 I; S2O3-2 is being oxidized, it acts a the reducing agent

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