Identify (A), (B), (C ) and (D) and give their chemical formulate.
`(A)+NaOH overset(Delta)rarr NaCI+NH_(3)+H_(2)O`
`NH_(3)+CO_(2)+H_(2)O rarr (B)`
`(B)+NaCI rarr (C )+NH_(4)CI`
`(C )overset(Delta)rarr Na_(2)CO_(3)+H_(2)O+(D)`

Explanation

To solve the problem, we will identify the compounds (A), (B), (C), and (D) step by step based on the reactions provided.

### Step 1: Identify Compound (A)
The first reaction is:
\[ (A) + \text{NaOH} \overset{\Delta}{\rightarrow} \text{NaCl} + \text{NH}_3 + \text{H}_2\text{O} \]

In this reaction, we see that ammonia (\( \text{NH}_3 \)) is produced, which suggests that (A) is likely an ammonium salt. The only ammonium salt that fits this reaction is:
\[ (A) = \text{NH}_4\text{Cl} \] (Ammonium chloride)
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