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Methane

Will Carbon d...

Question

Will Carbon dioxide and water always form in a combustion reaction?

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Solution

Dear Student,

CO₂ and water are formed in a combustion reaction (when a hydrocarbon reacts with oxygen).
CH₄+2O₂ → CO₂+ 2H₂O.
But, CO₂ and water are also formed when a base like sodium bicarbonate or sodium carbonate reacts with an acid.
NaHCO₃(aq) + HCl(aq) → NaCl (aq) + CO₂(g) + H₂O(l) (reaction between sodium bicarbonate and hydrochloric acid)
Na₂CO₃(aq) + 2HCl(aq) → 2NaCl (aq) + CO₂(g) + H₂O(l) (reaction between sodium carbonate and hydrochloric acid)

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