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Magnesium oxide in fact is soluble in water but very little. it means that if you put magnesium in water and fitrate and repeat this a few times you can realize that you don"t have the same amount that you started with.

the reason why magnesium oxide is less soluble in water than other metals oxide, is due to the intramolecualr force within the magnesium oxide compound. In fact, magnesium oxide is very small, and the attaction forces are very strong to be broke apart when reacted with water.

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11y ago
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14y ago

Well...Magnesium sulfate actually does dissolve in water- you simply have to heat up the water.

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11y ago

Magnesium sulfate dissolves in water because the attraction of magnesium ions and sulfate ions for water molecules is greater than the attraction of magnesium ions for sulfate ions.

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13y ago

Yes, it is. Solubilty of magnesium sulfate in water is:

26.9 g/100 mL (0 °C)

25.5 g/100 mL (20 °C), which is LESS! at higher temperature!

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Q: Why is magnesium oxide insoluble in water?
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Related questions

Is magnesium the same as magnesium oxide?

No. They are two completely different substances. Magnesium chloride (MgCl2) is a water soluble compound of magnesium and chlorine. Magnesium oxide is a water insoluble compound of magnesium and oxygen.


Is magnesium oxide aqueous?

No. Magnesium oxide is not soluble in water. On contact with water it will form magnesium hydroxide.


What happens when magnesium oxide is added to water the salt will be?

Magnesium oxide react with water and magnesium hydroxide is formed.


Is magnesium nitride soluble in water?

No, magnesium oxide is practically insoluble in water; the solubility at room temperature is 0,086 g/L.


Difference between magnesium oxide and magnesium hydroxide?

Magnesium oxide will react with water to form Magnesium Hydroxide. Magnesium Hydroxide will not reat further with water


What gas was produced when water is being added to Magnesium Oxide?

Magnesium oxide don't react with water.


What happens when iron oxide is mixed with water?

Iron oxide (Fe2O3) in insoluble in water.


Is magnesium and magnesium oxide the same?

No, magnesium oxide consists of positive magnesium ions (Mg2+) and negative oxide (O2-) ions. It is a white powder. Magnesium and oxygen are to separate substances. Magnesium consists of neutral magnesium atoms (Mg). It is a silvery metal. Oxygen consists of neutral oxygen molecules (O2) it is a colorless gas.


Would magnesium oxide make an alkali?

Yes. Magnesium oxide will react with water to form magnesium hydroxide.


What happens to iron oxide when it is dissolved?

Iron oxide (Fe2O3) in insoluble in water.


What is the common name for MgO?

Magnesium Oxide


How flammable is magnesium?

Magnesium is extremely flammable. It will react even with water!!!!!!