Potassium chloride has which solubility in water?

Potassium chloride has which solubility in water?

• A. Soluble
• B. Insoluble
• C. Reacts with water
• D. Decomposes

Answer: (A)

Solubility in water comes from how a substance interacts with water: a soluble substance dissolves to form a solution rather than staying as a solid. Potassium chloride is an ionic compound made of potassium ions (K+) and chloride ions (Cl−). When added to water, the polar water molecules surround and separate these ions from the solid lattice, pulling them into the solution. This process happens readily, so the solid dissolves rather than staying intact. It isn’t reacting with water or decomposing; the dissolution is purely a physical separation into ions in solution. So potassium chloride forms an aqueous solution containing K+ and Cl− ions, which is why it is soluble.

Solubility in water comes from how a substance interacts with water: a soluble substance dissolves to form a solution rather than staying as a solid. Potassium chloride is an ionic compound made of potassium ions (K+) and chloride ions (Cl−). When added to water, the polar water molecules surround and separate these ions from the solid lattice, pulling them into the solution. This process happens readily, so the solid dissolves rather than staying intact. It isn’t reacting with water or decomposing; the dissolution is purely a physical separation into ions in solution. So potassium chloride forms an aqueous solution containing K+ and Cl− ions, which is why it is soluble.