© Oxford University Press 2014 www.oxfordsecondary.co.uk/acknowledgementsThis resource sheet may have been changed from the original.1.4 Support sheetC2
Displacement of halides
Hazards and their descriptions are shown below to help you complete the
activity.
flammable can catch fire easily
biohazard contains dangerous organisms such as bacteria
irritant can irritate eyes, skin, and lungs
corrosive may dissolve or burn materials, including skin
toxic can be poisonous and possibly lethal
explosive may explode
harmful can hurt eyes and skin
Hints for writing word equations:
General equation for Group 7 displacement reactions:
more reactive halogen + compound → less reactive halogen + new compound
For example:
chlorine + potassium iodide → iodine + potassium chloride