Jennifer and Cody are mixing substances during a lab experiment. They observe the four effects listed below. Which of these effects indicates that a chemical reaction has taken place between two substances? A pink powdered substance turns water pink when they are mixed together.

A piece of shiny metal begins to bubble when placed in a clear liquid.

A white solid disappears when mixed with water.

A clear, lemon-scented liquid continues to smell like lemon when it is mixed with water.