Which of the Following Would Be Considered a Fuel Cell $\rarr$

question 113

Multiple Choice

Which of the following would be considered a fuel cell

• A)C₃H₈(g) + 5O₂(g) \(\rarr\) 3CO₂(g) + 4H₂O(l)
• B)Pb(s) + PbO₂(s) + 4H⁺(aq) + 2SO₄^2-(aq) \(\rarr\) 2PbSO₄(s) + 2H₂O(l)
• C)Zn(s) + 2NH₄⁺(aq) + 2MnO₂(s)\(\rarr\) Zn²⁺(aq) + 2NH₃(aq) + H₂O(l) + Mn₂O₃(s)
• D)Zn(Hg) + HgO(s) \(\rarr\) ZnO(s) + Hg(l)
• E)2Fe(s) + O₂(g) + 4H⁺(aq) \(\rarr\)2Fe²⁺(aq) + 2H₂O(l)

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The revenue that a business or individual receives within a specified period, including wages, profits, rents, and other earned amounts.

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Income that remains after deducting all costs, expenses, and taxes necessary to sustain the operation of the business.