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chemistry paper 1 (fuel cells (disadvantages (hydrogen is flammable,…
chemistry paper 1
fuel cells
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reacts with hydroxide, forms water
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diffuses through electrode, reacts with water to form hydroxide ions
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exo+endothermic reations
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i.e - oxidation, combustion, neutralisaton
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extracting metals
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some metals, electrolysis required
using energy transfers
exothermic
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some reversible, others not
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endothermic
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reaction reversible, ice packs not
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