What Happens When Magnesium Burns in Air?

When magnesium burns in air, the oxygen in the air reacts with magnesium metal to produce magnesium oxide. However, for this reaction to occur, heat must be applied. The chemical equation for this reaction is 2Mg + O2 produces 2MgO and energy.

Magnesium oxide is a compound also known as magnesia. Its molecular weight is 40.3044 grams per mole. It is a white powder that also has a very high melting point of 5072 degrees Fahrenheit. This compound has very low solubility in water.

Magnesium oxide is a basic compound and can neutralize acids. One of this compound’s main uses is for neutralizing gas caused by indigestion. In the form of milk of magnesia, it is also useful for constipation, according to the National Institute of Health.

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