This question is about the halogens (Group 7) - AQA - GCSE Chemistry - Question 3 - 2015 - Paper 3
Question 3
This question is about the halogens (Group 7).
3 (a) How do the boiling points of the halogens change down the group from fluorine to iodine?
3 (b) Sodium bromide ... show full transcript
Worked Solution & Example Answer:This question is about the halogens (Group 7) - AQA - GCSE Chemistry - Question 3 - 2015 - Paper 3
Step 1
How do the boiling points of the halogens change down the group from fluorine to iodine?
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Answer
The boiling points of the halogens increase down the group from fluorine to iodine. This is due to the increase in molecular size and the corresponding increase in van der Waals forces, which require more energy to overcome.
Step 2
Write down the symbols of the two ions in sodium bromide.
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Answer
The two ions in sodium bromide are Na⁺ and Br⁻.
Step 3
Complete the word equation for the reaction.
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