\head Ionic Compound in Solution & Observed Flame Color \cr
  \noalign{\hrule}
  $HCl$ Solution (baseline) & blue \endlinex
  0.5M calcium chloride ($CaCl_2$) & orange-red \endlinex
  0.5M sodium chloride ($NaCl$) & orange-yellow \endlinex
  0.5M barium chloride ($BaCl_2$) & pale green \endlinex
  0.5M lithium chloride ($LiCl$) & red \endlinex
  0.5M copper(II) chloride ($CuCl_2$) & blue-green \endlinex
  0.5M cesium chloride ($CsCl$) & blue-violet \endlinex
  Unknown Solution \#1 & red \endlinex
  Unknown Solution \#2 & blue-violet \cr