Classify the following compounds as ionic (metal+nonmetal),,,covalent (nonmetal+nonmetal),,or both (compound containing a polyatomic ion)... A) CaCl2,,,B) CO2,,,,C) H20,,,D) H2So4,,E) Baso4,,,F). NaF,,,G). CH4,,,,H) HCL,,,I) Mg0..