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12 questions from this quiz
Fuel cells need external fuel supply
Water
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−
Oxygen gains electrons and forms water
From anode to cathode
Their only by-product is water
Hydrogen is highly flammable
Production and distribution is expensive
In spacecraft like the Space Shuttle
Efficiency and low environmental impact
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