What kind of behavior does it exhibit when you place it in water in a heated Highland container?

When placed in water in a heated Highland container, the behavior of the substance will depend on its properties. If the substance is water-soluble, it may dissolve or form a solution with the water. If the substance is insoluble in water, it may remain as a solid or form a suspension in the water. The substance may also undergo a chemical reaction with the water or change its physical state (such as melting or evaporating) depending on its composition and properties.

The question is unanswerable because there is no such thing as a Highland container.