Chemistry, 24.09.2020 15:01 sierravick123owr441
Chlorine, bromine and iodine are Group 7 elements.
A student investigated the reactivity of these elements.
The student added:
- aqueous chlorine to potassium bromine and potassium iodide solutions
- aqueous bromine to potassium chloride and potassium iodide solutions
- aqueous iodine to potassium chloride and potassium bromide solutions.
The student's results are shown below.
Solution | Potassium chloride | Potassium bromide | Potassium iodide
Chlorine | None | Solution turned orange-brown | Solution turned brown
Bromine | No reaction | None | Solution turned brown
Iodine | No reaction | No reaction | None
Use these results to state and explain the trend in reactivity of these Group 7 elements. (2)
Answers: 1
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Chlorine, bromine and iodine are Group 7 elements.
A student investigated the reactivity of these e...
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