Question

identify salts from the list below that are insoluble in aqueous solution (more than one may be correct).


VS

KI

Cr(NO3)3

Answer 1

KI and Cr(NO3)3

All nitrates and potassium’s are soluble

Answer 2

Answer:

KI and Cr(NO₃)₃

Explanation:

You have probably learned NAG SAG and "Cats Cradle Old People," Sally Said.

$\begin{array}{ll}\textbf{Soluble} & \textbf{Insoluble}\\\textbf{N}\text{itrates} &\textbf{C} \text{arbonates }\\ \textbf{A}\text{cetates} & \textbf{C}\text{hromates}\\ \textbf{G}\text{roup 1} & \textbf{O}\text{ hydrOxides}\\ & \textbf{P} \text{hosphates}\\\textbf{S}\text{ulfates} &\textbf{S} \text{ulfites}\\ \textbf{A}\text{mmonium} & \textbf{S}\text{ulfides}\\\textbf{G}\text{roup 17} &\\ \end{array}$

We can use the solubility rules to decide which compounds are soluble.

VS            — insoluble (Sulfide}

KI            — soluble (Group 1)

Cr(NO₃)₃  — soluble (Nitrate)