Chemistry ?
the chemical formulae of some chemical compounds are written in the first column of the table below. each compound is soluble in water.
imagine that a few tenths of a mole of each compound is dissolved in a liter of water. then, write down in the third column of the table the chemical formula of the major chemical species that will be present in this solution.
note: "major" chemical species are those present in concentrations greater than 10^-6 mol/l

c3h6(oh)2 : ?
fei3 : ?
c3h8o : ?