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