Colorful charts designed for readability and ready-reference on any classroom or laboratory wall, these sets of eye-catching posters will simplify complicated chemistry concepts for your students. Each is printed on durable, heavyweight paper. Set of four posters includes: Solubility Curves, Solubility in Water, Ionization Energies and Electronegativities, and Relative Strengths of Acids in Aqueous Solution.Size of each: 17" x 22".