Finding balanced net ionic equation of reaction with three reactants

[Aaron H.]

Homework Statement

Write a balanced net ionic equation for the following chemical reaction

Homework Equations

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

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.

 

[Borek]

I'm not sure what type of reaction this is. Consequently, I don't know how to go about finding the net ionic equation.

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.

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

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⁺).