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12 questions from this quiz
Fuel and oxidising agent
Fuel cells require external fuel supply
2H2+O2→2H2O2H_2 + O_2 \rightarrow 2H_2O2H2+O2→2H2O
It is oxidised, losing electrons
H2→2H++2e−H_2 \rightarrow 2H^+ + 2e^-H2→2H++2e−
From anode to cathode via external circuit
Water
Through the electrolyte within the cell
Hydrogen is highly flammable
It is expensive and complex
Space Shuttle and International Space Station
Oxygen gains electrons to form water
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