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Chemistry
Problem Which is the correct half-equation for the anode reaction in an alkaline hydrogen fuel cell?
a. H 2 ( g ) + 2 OH − ( aq ) → 2 H 2 O ( l ) + 2 e − \text{H}_2(\text{g}) + 2\text{OH}^-(\text{aq}) \rightarrow 2\text{H}_2\text{O}(\text{l}) + 2\text{e}^- H 2 ( g ) + 2 OH − ( aq ) → 2 H 2 O ( l ) + 2 e − O 2 ( g ) + 2 H 2 O ( l ) + 2 e − → 4 OH − ( aq ) \text{O}_2(\text{g}) + 2\text{H}_2\text{O}(\text{l}) + 2\text{e}^- \rightarrow 4\text{OH}^-(\text{aq}) O 2 ( g ) + 2 H 2 O ( l ) + 2 e − → 4 OH − ( aq ) H 2 ( g ) → 2 H + ( aq ) + 2 e − \text{H}_2(\text{g}) \rightarrow 2\text{H}^+(\text{aq}) + 2\text{e}^- H 2 ( g ) → 2 H + ( aq ) + 2 e − H 2 ( g ) + 1 2 O 2 ( g ) → H 2 O ( l ) \text{H}_2(\text{g}) + \frac{1}{2} \text{O}_2(\text{g}) \rightarrow \text{H}_2\text{O}(\text{l}) H 2 ( g ) + 2 1 O 2 ( g ) → H 2 O ( l ) Browse the problem library