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A small piece of heated sodium metal on a deflagrating spoon is lowered into a gas jar containing reddish-brown bromine vapour, as shown in the diagram.

A diagram of a gas jar containing reddish-brown bromine vapour. A deflagrating spoon holding a piece of hot, glowing sodium metal is being lowered through the lid into the gas jar.

During the vigorous reaction, the reddish-brown colour disappears and a white crystalline solid is formed, coating the inside of the gas jar.

Identify the white solid.

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Group 7 Questions

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.

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Group 7 Questions

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