Question

is burning of hydrogen in air an endothermic or exothermic reaction
also give balanced equation for the same
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Answer 1

Answer:

Burning wood in air is an exothermic process (it releases heat), but there is an energy barrier, so it requires a bit of heat in the beginning to get the reactions started. ... This is because it's usually necessary to break some chemical bonds (endothermic) before new stronger bonds can be formed (exothermic).

Burning wood in air is an exothermic process (it releases heat), but there is an energy barrier, so it requires a bit of heat in the beginning to get the reactions started. ... This is because it's usually necessary to break some chemical bonds (endothermic) before new stronger bonds can be formed (exothermic).Explanation:

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