Write a balanced chemical equation for the preparation of each of the following salts:
Ammonium sulphate crystals

Explanation

To write a balanced chemical equation for the preparation of ammonium sulfate crystals, we need to follow these steps:

### Step 1: Identify the reactants
Ammonium sulfate can be prepared by reacting ammonia (NH₃) with sulfuric acid (H₂SO₄).

### Step 2: Write the unbalanced equation
The unbalanced equation for the reaction is:
\[ \text{NH}_3 + \text{H}_2\text{SO}_4 \rightarrow \text{(NH}_4)_2\text{SO}_4 \]
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