Question

During an experiment, a student observes the formation of a precipitate. Why does this indicate that a chemical reaction is likely occurring?
A solid forms, and there is a change of color.
A gas forms, and there is a change of color.
A solid forms, and light is emitted.
A gas forms, and light is emitted.

Answer 1

Answer:

a solid forms, and there is a change of color.

Explanation:

Answer 2

Solid forms, there is a change of color when in the context of precipitation.