• Chemistry Salters OCR ISA: Halogens

Hello done an ISA on Tuesday went well written parts tomorrow and I know they're going to ask why things happened. I know most but at the start I dipped 2 graphite electrodes in a green solution and at the positive electrode there was pink discharge and at the negative purple discharge.

Anyone know why? Thanks

For those looking for help this sites great: http://www.rod.beavon.clara.net/incat3.htm

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