9) 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. a) i and ii b) iii only c) ii, iii and iv d) i, ii and iii