Cynthia sees that most of the ice in her iced tea has melted.Assuming the water and the ice are at the same temperature, what happened to the particles in her ice?

When the ice melts, the particles in the ice transition from a solid phase to a liquid phase. Therefore, the particles in the ice have changed from being closely packed and vibrating in a fixed position in the solid state to moving freely and more loosely arranged in the liquid state.

When ice melts, the particles in the ice change their state from a solid to a liquid.

When the ice in Cynthia's iced tea melts, the particles in the ice undergo a phase change from a solid to a liquid. The particles in a solid are closely packed together in a fixed arrangement, vibrating in place. However, when heat is added to the ice, it gains enough energy to break the bonds holding the particles together. As a result, the particles become mobile and are able to move freely, transforming the substance from a solid state to a liquid state. So, when Cynthia's ice melted, the particles in the ice gained enough energy to break their fixed positions and move around as liquid water.