Question

is the compound soluble or insoluble in water? k₂s

Explanation:

Step1: Recall solubility rules

Salts containing alkali metal cations (like \(K^+\)) are generally soluble.

Step2: Analyze \(K_2S\)

\(K_2S\) has \(K^+\) (an alkali metal cation). According to solubility rules, salts with alkali metal cations are soluble in water.

Answer:

soluble (aq)