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How is hydrogen an alterative energy source?

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Answer:

Since there are no significant amounts of free hydrogen, it should be considered more of an energy storage than an energy source. In other words, it takes energy to separate water into hydrogen and oxygen; you get that energy back when the hydrogen is burned.

First answer by Hilmarz. Last edit by Hilmarz. Contributor trust: 802 [recommend contributor ]. Question popularity: 1 [recommend question].

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