Question

From the list below, identify which situation(s) contain chemical changes. I) A pot of water is being heated on a stove. Bubbles form and condensation appears on the lid of the pot. II) A translucent, blue copper (II) sulfate solution is mixed with another solution and changes to a translucent lighter blue color. III) Ammonium nitrate solid dissolves in water and feels very cold. IV) Red and blue paint are mixed together and the color purple appears.

Answer 1

2)sulfate solution is mixed with another solution and changes to a translucent lighter blue color