mini-lab: Identify Compounds

I had some interesting results with the different unknown compounds. Each compound produces a color that differed at least a little bit from the other compounds. I believe this is because even though they all contained chlorine they also all contained a different element as well. An element's flame test may be related to the atomic emission spectrum because the emission spectrum is the set of frequencies of the electromagnetic waves and that also is what determines the color of the flame. Below are a table of the substances I know and the unknown substances that I made an inference on.