What Is the Chemical Formula for Magnesium Oxide?


Quick Answer

The chemical formula for magnesium oxide is MgO. It is an inorganic compound found in nature in the mineral periclase. Its atomic weight is 40.3044 grams per mole.

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Full Answer

Magnesium oxide is a white, odorless and crystalline solid. It has a melting point of 5,117 degrees Fahrenheit and a boiling point of 6,512 F. Its density is 3.6 grams per cubic centimeter. Although this compound’s solubility in water is poor, it is soluble in acids. However, it is insoluble in ethanol.

Magnesium oxide is also called magnesia or magnesium(II) oxide. It has medicinal applications and may be prescribed as an antacid for heartburn. It also functions as a laxative and a dietary supplement.

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