How do you balance this equation? Fe(NO3)3+KSCN→Fe(NO3)3+KSCN

3 Answers
Wricheek
Jun 24, 2016

NO

Explanation:

Since,the reactants side is the same as product side,hence, no chemical reaction has taken place.

Hence,since it isn't even a chemical reaction it cant be ballanced.

anor277
Jun 24, 2016

Fe(NO3)3+3KSCN→[Fe(SCN)3]+3KNO3

Explanation:

The tristhiocyanato iron species is a so-called complex ion. Both mass and charge are balanced in the equation.

Michael
Jun 24, 2016

You haven't actually written any products but I will describe the reaction below:

Explanation:

Iron(III) ions form a blood-red complex with thiocyanate ions in a 1:1 molar ratio.

Fe(NO3)3 + KSCN→[FeSCN]2++K++3NO−3

The ionic equation which omits the spectator ions is:

Fe3+(aq)+SCN−(aq)→[Fe(SCN)]2+(aq)

The complex is very intensely coloured and this reaction is often used as a qualitative test for iron(III) ions.

Strictly speaking we have a ligand exchange reaction:

[Fe(H2O)6]3++SCN−→[Fe(H2O)5SCN]2++H2O

The reaction is shown here:

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