Question

2a. Write the REDOX equation for Hydrogen + Oxygen -> H2O 2b. Write the REDOX equation...

2a. Write the REDOX equation for Hydrogen + Oxygen -> H2O

2b. Write the REDOX equation for Glucose + Oxygen -> CO2 + H2O (+ energy)

2c. Write the REDOX equation for Iron[+2] + Oxygen + Hydrogen[+] -> Iron[+3] + water

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Answer #1

(a)

2 H2 (g) + O2 (g) --------> 2 H2O (l)

Reduction Half Reaction: O2 (g) + 4e ----> 2 O2-

Oxidation Half Reaction: 2 H2 (g) --------> 4 H+ + 4 e

(b)

C6H12O6 + 6 O2 ----------> 6 CO2 + 6 H2O

Oxidation Half Reaction: C6H12O6 --------> CO2 + 4 e

Reduction Half reaction: O2 + 4 e ------------>2 O2-

(c)

Fe2+ + O2 + H+ --------> Fe3+ + H2O

Oxidation Half reaction: Fe2+ -----------> Fe3+ + e

Reduction Half reaction: O2 + 4e ------> 2 O2-

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