Question

using the solubility rules given, predict if the ionic compound nico₃ is soluble in water or insoluble.
select one:
○ soluble
○ insoluble

Explanation:

To determine the solubility of $\ce{NiCO_{3}}$, we use solubility rules. Carbonates ($\ce{CO_3^{2-}}$) are generally insoluble, except when paired with Group 1 metals (e.g., $\ce{Na^+}$, $\ce{K^+}$) or ammonium ($\ce{NH_4^+}$). Nickel ($\ce{Ni^{2+}}$) is not a Group 1 metal or ammonium, so $\ce{NiCO_{3}}$ is insoluble.

Answer:

Insoluble