Question

What happened when magnisium ribbon is burnt in air .is magnisium oxidised or reduced

Answer 1

it oxidised because in air magnesium ribbon can get in cover of oxygen

Answer 2

Oxygen and magnesium come together in a chemical reaction to form this compound. After it burns, it forms a white powder of the magnesium oxide. Magnesium gives up two electrons to oxygen atoms to form this powdery product. This is an exothermic reaction. An exothermic reaction is a term that describes a chemical reaction in which there is a net release of energy.

2 Mg + O2 -----> 2 MgO + energy