During a laboratory investigation into the trends in reactivity of the Group 7 elements, a technician adds a small volume of pale-green chlorine water to an excess of colourless sodium bromide solution.
State the observation that would be made.
Practise Edexcel GCSE Chemistry Group 7 with exam-style questions for Foundation and Higher tier. 87 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.