Which of the Following Overall Chemical Equations Is Responsible for Generating

question 28

Multiple Choice

Which of the following overall chemical equations is responsible for generating electricity in fuel cells used in NASA's Space Shuttle programs?

• A) Fe₂O₃(s)+ Al(s)→ Fe(s)+ Al₂O₃(s)
• B) Pb(s)+ PbO₂(s)+ 2 H₂SO₄(aq)→ 2 PbSO₄(s)+ 2 H₂O( )
• C) 2 NiO(O
• H)(s)+ Cd(s)+ H₂O( )→ 2 Ni(O
• H)₂(s)+ Cd(O
• H)₂(s)
• D) 2 H₂(g)+ O₂(g)→ 2 H₂O( )
• E) N₂H₄( )+ O₂(g)→ N₂(g)+ 2 H₂O( )

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