Question

what happen when magnesium ribbon is burnt in air? give chemical reaction

Answer 1

When we burn magnesium in air then it combines with oxygen present in air and gives magnesium oxide as a result.
2Mg +O2= 2MgO

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Answer 2

When magnesium ribbon is burned in air, it burns with a blue flame and white ash(magnesium oxide) is produced .

CHEMICAL REACTION -

2Mg + O₂→  2MgO