The formula unit of aluminum oxide is Al2O3.
the correct formula unit for the ionic compound barium oxide is BaO.
Al2O3
No subscripts are needed: The formula unit for calcium oxide contains one calcium cation with a charge of +2 and one oxide anion with a charge of -2.
The formula mass of aluminum oxide (Al2O3) is approximately 102 atomic mass units.
MgO.
The formula unit for the ionic compound barium oxide is BaO. In this compound, barium (Ba) has a +2 charge, while oxide (O) has a -2 charge. The combination of one barium ion and one oxide ion results in a neutral compound, represented as BaO.
The chemical formula for sodium oxide is Na2O.
The formula unit of magnesium oxide is MgO, composed of one magnesium ion (Mg2+) and one oxide ion (O2-). It forms a white solid with high melting and boiling points due to its ionic nature. Magnesium oxide is commonly used in agriculture, medicine, and various industrial applications.
The chemical formula for Calcium oxide is CaO. A single calcium atom bonds with a single oxygen atom to make this compound, and a link can be found below for more information.CaO
NaCl is the chemical formula unit of sodium chloride. MgO is the chemical formula of magnesium oxide.
MgO2 is not a correct formula unit. Magnesium oxide typically has a formula unit of MgO, where magnesium has a +2 charge and oxygen has a -2 charge, resulting in a balanced compound.
I am going to assume you meant ferrous oxide. Ferrous oxide is also known as Iron(II) oxide and has the formula unit FeO. The oxidation number of iron in iron(II) oxide is +2.