Acetic acid, an organic compound, has the following structural formula. A C atom is bonded above, below, and left to H, and to the right to another C. That C is double-bonded above left to O, and single-bonded below left to O which is in turn single bonded to the right to an H. What is the chemical formula for acetic acid? CHO C2H4O2 C2OH C2O2H