hydroxides are insoluble with exceptions of Ba, Sr, Ca and all ions of group 1 with a hydroxide are soluble...
therefore, magnesium hydroxide is a solid.
The question of its solubility in anything does not relate to whether it is solid or not. Temperature is also involved. Magnesium hydroxide is a solid at "room temperature". Carbon dioxide is a gas at room temperature, but a solid at low temperatures.
No, iron oxide is not a gas. It is a solid compound composed of iron and oxygen atoms.
Sodium oxide is a soft solid at room temperature.
Calcium oxide is a white, caustic and alkaline crystalline solid at room temperature.
Aluminum oxide is a solid at room temperature. It exists in a crystalline form as a white powder or colorless solid.
Copper(II) oxide is a solid. It is a black powder that is insoluble in water and often used as a pigment or catalyst.
No, iron oxide is not a gas. It is a solid compound composed of iron and oxygen atoms.
Aluminium oxide (Al2O3) is a solid, the oxide of a metal.
Calcium oxide is a solid at room temperature. It is a white, crystalline solid that is commonly referred to as quicklime.
The metal that forms a yellow solid oxide is lead. Lead oxide (PbO) is a yellow solid that is commonly known as litharge.
Yes, copper(II) oxide is a solid at standard and room temperature. Copper(I) oxide is also a solid in these conditions as well.
Nickel II oxide exists as a solid at room temperature.
Yes it is, and it is written as Mercury (II) oxide
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No, barium oxide is a solid compound. It is a white, odorless solid that is commonly used in the production of electronic devices and glass.
Mercuric oxide is in the solid state.
The oxide MnO2 is a solid; I suppose that the oxide Mn2O2 doesn't exist,if it is then it must be a solid due to presence of metal Manganese.
Sulfer oxide is covalently bonded - so no, it is not an ionic solid.