Question

what happens when magnesium ribbon is burnt in air and write the chemical reaction

Answer 1

When Magnesium burns air it reacts with oxygen present in air to form magnesium oxide. 2Mg + O2 →2MgO 2). When lead nitrate reacts with potassium iodide to form lead iodide and potassium nitrate. Pb(NO3)2 + 2KI → 2PbI2 + 2KNO3.

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Answer 2

Mg + O -> MgO
a dazzling white flame is produced when magnesium burns in air