CH-2042

Balancing equations

Chemistry · Secondary 4 · Medium · Balancing equations

Methane,

\text{CH}_4

, is the main component of biomethane. When it burns completely in oxygen, carbon dioxide and water are formed. What is the balanced chemical equation for this combustion?

$\text{CH}_4 + 2\text{O}_2 \to \text{CO}_2 + 2\text{H}_2\text{O}$
$\text{CH}_4 + \text{O}_2 \to \text{CO}_2 + 2\text{H}_2\text{O}$
$\text{CH}_4 + 3\text{O}_2 \to 2\text{CO}_2 + 2\text{H}_2\text{O}$
$2\text{CH}_4 + 2\text{O}_2 \to 2\text{CO}_2 + 2\text{H}_2\text{O}$

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