Question

Reaction of Metal with Oxygen. Explain.​

Answer 1

When Magnesium reacts with oxygen it forms Magnesium oxide

Mg+O2----------------> MgO

Answer 2

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$\implies \:$ When a metal reacts with oxygen, a metal oxide forms. The general equation for this reaction is: metal + oxygen → metal oxide. Rust is a form of iron oxide and it forms slowly when iron is exposed to air. Iron can be transformed to steel (an alloy), which is more resistant to rust.