Complex sentence: In chemistry, pyrosulfate is the anion with the molecular formula S 2 O 7 2 − which has a dichromate like structure and can be visualised as two corner sharing SO 4 tetrahedra, with a bridging oxygen atom.
Split into simpler sentences: In chemistry, disulfate or pyrosulfate is the anion with the molecular formula S 2 O 7 2 −. It has a dichromate like structure and can be visualised as two corner sharing SO 4 tetrahedra, with a bridging oxygen atom.