Complete the following reaction:
`RNH_(2)+H_(2)SO_(4)to`

Options

A. `[RNH_(3)]^(+)HSO_(4)^(-)`
B. `[RNH_(3)]_(2)^(+)SO_(4)^(2-)`
C. `RNH_(2).H_(2)SO_(4)`
D. No reaction

Answer

To complete the reaction of an amine (RNH₂) with sulfuric acid (H₂SO₄), we can follow these steps:

### Step 1: Identify the Reactants
The reactants in this reaction are:
- An amine (RNH₂), which is a basic compound.
- Sulfuric acid (H₂SO₄), which is a strong acid.

### Step 2: Understand the Nature of Amines
Amines are basic in nature. When they react with acids, they typically form ammonium salts.

### Step 3: Write the Reaction
When an amine reacts with sulfuric acid, the amine accepts a proton (H⁺) from the acid. This leads to the formation of an ammonium ion. The general reaction can be represented as:

\[ RNH_2 + H_2SO_4 \rightarrow RNH_3^+ + HSO_4^- \]

### Step 4: Balance the Reaction
Since two moles of amine can react with one mole of sulfuric acid, the balanced equation becomes:

\[ 2RNH_2 + H_2SO_4 \rightarrow 2RNH_3^+ + SO_4^{2-} \]

### Step 5: Write the Final Products
The final products of the reaction are:
- Ammonium sulfate salt (2RNH₃⁺)
- Sulfate ion (SO₄²⁻)

### Final Reaction
Thus, the complete reaction can be summarized as:

\[ 2RNH_2 + H_2SO_4 \rightarrow 2RNH_3^+ + SO_4^{2-} \]

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