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.
A) I and II
B) III only
C) II, III and IV
D) I, II and III

Answer 1

The answer to your question is option (C)