Iniversity- CHEM 1342-Falli7-PATTERSON (Sec. 003 and oos) > Activities and Due D

Question

Iniversity- CHEM 1342-Falli7-PATTERSON (Sec. 003 and oos) > Activities and Due Dates Chapter 20 Hor 12/5/2017 08:00 AM 4 3.8/100 -Print Calculator Periodic Table Question 4 of 28 Ma General Chemistry 4th Edition University Science Books presented by Sapling Learning In a hydrogen fuel cell, hydrogen gas and oxygen gas are combined to form Write the balanced chemical equation describing this reaction (using lowest water whole-number coefficients). dentify the oxidizing agent and reducing agent. oxidizing agent O hydrogen O oxygen O water reducing agent O hydrogen O axygen O water Determine the number of electrons transferred in the balanced chemical equation Number > Previous Give Up & View SoMonCheck Answer Ong, Exit Hint about us |careers privacy policy terms of use

Explanation / Answer

The balanced equation:   2 H2 + O2 = 2 H2 O

Oxidising agent: oxygen

Reducing agent: hydrogen

Number of electrons transferred in the balanced chemical equation:

The half reactions are :   

2H2 = 4 H + + 4e

O2 + 4H+ + 4e = 2H2O

So, number of electrons transferred= 4

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---