Question
Why is ethanol used as a fuel?
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| Li | Be | B | C | N | O | P | |
| Na | Mg | Al | Si | P | S | Cl |
$\text{CH}_4(\text{g})+2\text{O}_2(\text{g)}\rightarrow\text{CO}_2(\text{g})+2\text{H}_2\text{O}(\text{g})$