For the reaction between sodium hydroxide and ammonium chloride in aqueous solution, we’re asked to write**: the balanced formula equation, the complete ionic equation, and the net ionic equation**.

We solve the problem in 4 steps:

*Step 1*: Write the formula equation.

*Step 2*: Balance the formula equation.

*Step 3*: Determine the complete ionic equation.

*Step 4*: Determine the net ionic equation.

In aqueous solution, the ** solubility rules** are:

•__Soluble Ionic Compounds:__

▪**Group 1A ions** (Li^{+}, Na^{+}, K^{+}, etc.) and **Ammonium**** ion** (NH_{4}^{+}) are soluble

▪ **Nitrates** (NO_{3}^{-}), **Acetates** (CH_{3}COO^{-} or C_{2}H_{3}O_{2}^{-}), and most **Perchlorates** (ClO_{4}^{-}) are soluble

▪ **Cl ^{-}**,

▪

sodium hydroxide (aq) + ammonium chloride (aq) →

Balanced Formula Equation:

Complete Ionic Equation:

Net Ionic Equation: