Part A K and HSO-4Express your answer as a chemical formula.Part B K and HPO2-4Express your answer as a chemical formula.Part CK and C2O2-4Express your answer as a chemical formula. Part D Ni2 and O2-Express your answer as a chemical formula.Part E Ni2 and HSO-4Express your answer as a chemical formula.Part F Ni2 and HPO2-4Express your answer as a chemical formula.Part G Ni2 and C2O2-4Express your answer as a chemical formula.Part H NH 4 and O2-Express your answer as a chemical formula.Part I NH 4 and HSO-4Express your answer as a chemical formula. Part J NH 4 and HPO2-4Express your answer as a chemical formula.Part K NH 4 and C2O2-4Express your answer as a chemical formula. Part L Chromous and O2-Express your answer as a chemical formula.Part M Chromous and HSO-4Express your answer as a chemical formula.Part N Chromous and HPO2-4Express your answer as a chemical formula.Part O Chromous and C2O2-4Express your answer as a chemical formula. Complete the table by writing in the formula of the compound formed by each pair of ions:O2-HSO-4HPO2-4C2O2-4K K2ONi2 NH 4Chromous