2BaO2
2BaO2 refers to a chemical formula. This formula represents barium peroxide. Barium peroxide is an inorganic compound composed of barium and oxygen. It has the chemical formula BaO2. The "2" in 2BaO2 is not a subscript in standard chemical notation; chemical formulas use subscripts to denote the number of atoms of each element. Therefore, 2BaO2 is an unconventional way to represent barium peroxide, possibly indicating two units of BaO2, or perhaps a misunderstanding of chemical formula representation. The correct chemical formula for barium peroxide is BaO2.
Barium peroxide is a white solid. It is a peroxide, meaning it contains the peroxide anion O2^2-.
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