# Finding balanced net ionic equation of reaction with three reactants

1. May 17, 2012

### Aaron H.

1. The problem statement, all variables and given/known data

Write a balanced net ionic equation for the following chemical reaction

2. Relevant equations

Cr$^{3+}$ + ___NH3 (aq) + ____H2O (l) → Cr(OH)3 (s) + ___NH4$^{+}$ (aq)

3. The attempt at a solution

The balanced molecular equation is

Cr$^{3+}$ + 3 NH3 (aq) + 3 H2O (l) → Cr(OH)3 (s) + 3 NH4$^{+}$ (aq)

I'm not sure what type of reaction this is. Consequently, I don't know how to go about finding the net ionic equation. I can write net ionic equations for precipitation reactions with only two reactants, those aren't hard, but I'm a bit lost on the type presented above.

Last edited: May 17, 2012
2. May 18, 2012

### Staff: Mentor

Type of the reaction doesn't matter, there are simple rules to follow when writing net ionic equation. Actually there is one rule - remove all spectators.

And that's the correct answer.

Please note - it is better to not mix normal text and LaTeX for formatting. Instead of writing [noparse]Cr[itеx]^{3+}[/itеx][/noparse] (which yields Cr$^{3+}$) write [noparse]Cr3+[/noparse] (which yields Cr3+).