Question

what happens when metals react with oxygen (give three reactions)

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

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.

1. magnesium + oxygen → magnesium oxide. Mg +O2 ----> MgO2
2. iron + oxygen → iron oxide. Fe + O2 -----> Fe2O4
3. copper + oxygen → copper oxide . Cu + O -----> CuO.