What is Ba2MnO4? Important knowledge about Ba2MnO4.

1. Definition of Ba₂MnO₄
   Ba₂MnO₄, commonly known as Barium manganate, is a rare chemical compound. Its English name is also Barium manganate. Each molecule of it contains two Barium atoms (Ba), one Manganese atom (Mn) and four Oxygen atoms (O). The atomic mass of Ba₂MnO₄ is calculated by the total mass of all the atoms in a molecule, which is 439.13 g/mol. Its ionic structure consists of Ba₂+ ions and MnO₄- ions.

2. Properties: Ba₂MnO₄
   The physical properties of Ba₂MnO₄ are not fully understood due to its rarity. Its chemical properties have also not been fully researched.

3. Common chemical equations involving Ba₂MnO₄
   Since Ba₂MnO₄ is rare, no specific reactions with metals, acids, non-metals, or salts have been recorded.

4. Synthesis of Ba₂MnO₄
   The synthesis of Ba₂MnO₄ is also not carried out frequently in laboratories or industry because it is rare.

We recommend students to further study more common chemical compounds to better understand their properties and applications in daily life. Ba₂MnO₄ is an important but rare chemical compound, hence it is not discussed much in high school curriculum.