Posted by Kimberley on Wednesday, June 11, 2008 at 9:39pm.
Just write it the way the name tells you.
Tetrachloro means 4 chlorine atoms. Ferrate(II) means iron with a valence of 2.
Then you must put a charge on it.
FeCl4^-2 (iron has a valence of +2, each Cl has a valence of -1 for a total of -4; +2 and -4 = -2 for the ion).
Ru(NH3)5(H2O)+3
thank you
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