# What are the original colors of the "FeSO"_4 solution and of the "FeCl"_3 solution?

${\text{FeSO}}_{4} =$ blue-green
${\text{FeCI}}_{3} =$ yellow
${\text{FeSO}}_{4}$ is the chemical formula of iron(II) sulphate or ferrous sulphate. The color of a ferrous sulphate solution is blue-green.
${\text{FeCI}}_{3}$ is the chemical formula of iron(III) chloride or ferric chloride. The color of a ferric chloride solution is yellow.