Fill in the blank: potassium oxalate is added to the washed precipitate. Potassium oxalate dissociatesinto its ions in solution. At high oxalate concentrations, iron (II) oxalate combines withanother oxalate ion to form a soluble complex ion that consists of two oxalate ions joined tothe iron (II) ion. ___ FeC2O4•2H2O (s) + __________ (aq) → ___ Fe(_______) __ (aq) + ___ H2O (l)

Question

Fill in the blank:

potassium oxalate is added to the washed precipitate. Potassium oxalate dissociates
into its ions in solution. At high oxalate concentrations, iron (II) oxalate combines with
another oxalate ion to form a soluble complex ion that consists of two oxalate ions joined to
the iron (II) ion.


___ FeC2O4•2H2O (s) + __________ (aq) → ___ Fe(_______) __ (aq) + ___ H2O (l)

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