From the balanced synthesis reaction you provided, we have the product as \( 2 , NH_4 \)SO\(_4\). This indicates that the reactants must combine to produce ammonia (NH\(_3\)) and sulfuric acid (H\(_2\)SO\(_4\)), as ammonia is related to the ammonium ion (NH\(_4^+\)) found in ammonium sulfate.
Let's analyze the product more closely:
- Each formula unit of \( 2 , NH_4 \)SO\(_4\) contains:
- 2 ammonium ions \((NH_4^+)\)
- 1 sulfate ion \((SO_4^{2-})\)
To synthesize \( 2 , NH_4 \)SO\(_4\), we need:
- 2 molecules of ammonia (NH\(_3\)) to provide the nitrogen and hydrogen for the ammonium ions.
- 1 molecule of sulfuric acid (H\(_2\)SO\(_4\)) to provide the sulfate ion.
Therefore, the synthesis reaction can be written as:
\[ 2 , NH_3 + H_2SO_4 \rightarrow 2 , NH_4SO_4 \]
So, the reactants for the synthesis reaction are \(\mathbf{NH_3}\) (ammonia) and \(\mathbf{H_2SO_4}\) (sulfuric acid).