Question

use the references to access important values if needed for this question.
write the precipitation reaction for ammonium carbonate in aqueous solution:
(use the lowest possible coefficients. be sure to specify states such as (aq) or (s). if a box is not needed, leave it blank.)

is ammonium carbonate considered soluble or not soluble?
soluble
not soluble

Explanation:

To determine the precipitation reaction for ammonium carbonate, we first recall solubility rules. Ammonium salts (salts with \( \text{NH}_4^+ \)) are generally soluble. Carbonates: most carbonates are insoluble, but ammonium carbonate (\( (\text{NH}_4)_2\text{CO}_3 \)) is an exception (ammonium salts are soluble). However, to write a precipitation reaction, we need a reactant that forms an insoluble carbonate with \( \text{NH}_4^+ \) or an insoluble salt with \( \text{CO}_3^{2-} \). Wait, actually, ammonium carbonate is soluble, so if we react it with a metal cation that forms an insoluble carbonate, say calcium nitrate (\( \text{Ca(NO}_3\text{)}_2 \)):

Step 1: Identify reactants

Let's choose \( (\text{NH}_4)_2\text{CO}_3(aq) \) and \( \text{Ca(NO}_3\text{)}_2(aq) \).

Step 2: Write the double - displacement reaction

The reaction is \( (\text{NH}_4)_2\text{CO}_3(aq)+\text{Ca(NO}_3\text{)}_2(aq)
ightarrow\text{CaCO}_3(s) + 2\text{NH}_4\text{NO}_3(aq) \)

For the solubility of ammonium carbonate: Ammonium salts are soluble (solubility rule: all ammonium salts are soluble in water), so ammonium carbonate is soluble.

Answer:

(for the solubility part):
soluble

(For the precipitation reaction, using the lowest coefficients, the reaction is \( \boldsymbol{(\text{NH}_4)_2\text{CO}_3(aq)+\text{Ca(NO}_3\text{)}_2(aq)
ightarrow\text{CaCO}_3(s) + 2\text{NH}_4\text{NO}_3(aq)} \) and the solubility of ammonium carbonate is soluble)