1
Q
What are fuel cells supplied by?
A
an external source of fuel ( eg hydrogen) and oxygen or air
2
Q
How is the fuel oxidised? What does this produce?
A
electrochemically within the fuel cell to produce a potential difference
3
Q
What does the overall reaction in a hydrogen fuel cell involve?
A
the oxidation of hydrogen to produce water
4
Q
What do hydrogen fuel cells offer?
A
a potential to rechargeable cells and batteries
Chemistry
flashcards
Decks in class (26)
# Cards
-
Elements, compounds and mixtures8
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Atomic structure12
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Development of model of atom6
-
Development of periodic table6
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Group 05
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Group 110
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Group 78
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Metals13
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Ionic bonding8
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Covalent bonding11
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Structure and bonding of carbon17
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Sizes of particles and their uses12
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Masses in reactions10
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Concentration6
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Yield and atom economy4
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Gases1
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Reaction of metals12
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Making salts16
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pH scale8
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Titrations5
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Strong and weak acids8
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Electrolysis of metal compounds13
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Electrolysis of aqueous solutions8
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Exothermic and endothermic reactions15
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Cells and batteries5
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Fuel cells4
