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Chemistry help!

Aqueous potassium bromide and aqueous potassium chloride are both colourless.
Predict the colour change when aqueous chlorine reacts with aqueous potassium bromide.
Help!!
-Firstly, you need to understand the order of reactivity of the halogens: Chlorine is higher than Bromine-secondly, you need to understand that this is a displacement reaction which, in essence is focusing on chlorine and bromine, with potassium being a spectator-At the beginning, the mixture is colourless as chlorine by itself is a colourless gas-After the reaction is complete, the chlorine (more reactive halogen), displaces the bromide ion in KBr (Bromine is the less reactive halogen)-equation: Chlorine Potassium bromide -----> Bromine Potassium Chloride- The bromine is a brown/orange coloured gas and this is the new colour
Reply 2
Original post by liamdeltos
-Firstly, you need to understand the order of reactivity of the halogens: Chlorine is higher than Bromine-secondly, you need to understand that this is a displacement reaction which, in essence is focusing on chlorine and bromine, with potassium being a spectator-At the beginning, the mixture is colourless as chlorine by itself is a colourless gas-After the reaction is complete, the chlorine (more reactive halogen), displaces the bromide ion in KBr (Bromine is the less reactive halogen)-equation: Chlorine Potassium bromide -----> Bromine Potassium Chloride- The bromine is a brown/orange coloured gas and this is the new colour

Thank you!! This helped so much!!

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