a piece magnesium burns in oxygen with a dazzling white light forming a white powder of magnesium hydroxide
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Explanation:
When a piece of magnesium burns in oxygen, it burns and gives a dazzling flame, and MgO(magnesium oxide) is formed.
=> Mg + O2 --> 2MgO
When MgO reacts with water, it forms Mg(OH)2
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Oxygen and magnesium combine 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.
Explanation:
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