Chlorine, bromine, and iodine all react with heated aluminium foil. Table 1 shows the speed of these reactions.
Table 1
| Halogen | Speed of reaction with heated aluminium |
|---|---|
| Chlorine | Reacts very rapidly |
| Bromine | Reacts rapidly |
| Iodine | Reacts slowly |
When aluminium foil is heated with iodine, aluminium iodide is formed.
Write the word equation for this reaction.
Practise Edexcel GCSE Chemistry Group 7 with exam-style questions for Foundation and Higher tier. 77 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.
