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What happens when a magnesium ribbon is ...

What happens when a magnesium ribbon is heated in presence of air?

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When the magnesium metal burns, it reacts with oxygen found in the air to form magnesium oxide which forms a white powder of the magnesium oxide.
`underset("Magnesium")(Mg) + underset("Excess steam")(2H_(2)O) to underset("Magnesium hydroxide")(Mg(OH)_(2)) + underset("Hydrogen gas")(H_(2) uarr)`
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