Chemical Riddle #2

A student of mine, Anthony Shepherd, and I worked together to develop a new chemical riddle. Check out the video and see if you can come up with an answer.

Chemistry Topics

acids/bases applications of chemistry aqueous solution chemistry Atomic Properties / Structure conductivity consumer chemistry Demonstrations density electrochemistry electrolysis equilibrium Food Science gases General Chemistry kinetics Laboratory Instruction liquids metals noncovalent interactions Outreach Oxidation / Reduction oxidation/reduction Phases / Phase Transitions / Diagrams Physical Chemistry physical properties Polymer Chemistry precipitation/solubility Public Understanding reactions solids stoichiometry thermodynamics