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Describe what you would observe when Magnesium is heated strongly with water vapour
White powder; Bright white flame
1 of 7
Explain how an electric current can be generated in a hydrogen-oxygen fuel cell
Hydrogen electrode produces electrons; Oxygen electrode accepts electrons
2 of 7
Explain why a fuel cell does not have to be recharged
Reactants supplied continuously
3 of 7
Suggest the main advantage of hydrogen in a fuel cell rather than in an internal combustion engine
In the fuel cell, a greater proportion of the energy available from the hydrogen–oxygen reaction is converted into useful energy
4 of 7
Why are complexes of the same species different colours?
Same oxidation state; Same electron configuration; Different energy split in d-electron energy levels; Ligands are different
5 of 7
Name the a commonly used salt bridge
KNO3 (potassium nitrate)
6 of 7
What is the function of the salt bridge?
Allows ions to be transferred and keeps charges balanced
7 of 7

Other cards in this set

Card 2

Front

Explain how an electric current can be generated in a hydrogen-oxygen fuel cell

Back

Hydrogen electrode produces electrons; Oxygen electrode accepts electrons

Card 3

Front

Explain why a fuel cell does not have to be recharged

Back

Preview of the front of card 3

Card 4

Front

Suggest the main advantage of hydrogen in a fuel cell rather than in an internal combustion engine

Back

Preview of the front of card 4

Card 5

Front

Why are complexes of the same species different colours?

Back

Preview of the front of card 5
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