Equations for reactions dealing with coordination compounds


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> [![enter image description here](https://i.stack.imgur.com/pECrl.png)](https://i.stack.imgur.com/pECrl.png)  
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>  Write a balanced chemical equation for the reaction depicted in this figure. Express your answer as a chemical equation. Identify all the phases in your answer.
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This is what I have tried so far:


NH4NCS(aq) + [Fe(H2O)6]3+(aq) -> [Fe(H2O)5NCS]2+(aq) + H+(aq) + NH4OH(aq)


NH4NCS(aq) + [Fe(H2O)6]3+(aq) -> [Fe(H2O)5NCS]2+(aq) + H2O(l) + NH4+(aq)




I found the answer which I'm assuming was just getting rid of an unnecessary spectator ion:


SCN-(aq) + [Fe(H2O)6]3+(aq) -> [Fe(H2O)5(SCN)]2+(aq) + H2O(l)


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