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Polymer repeat units

I have a question that says draw two repeat units of poly(chloroethane)

The answer has brackets only drawn round one of the units; is this the case for all repeat units?
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Original post by SteveCrain
I have a question that says draw two repeat units of poly(chloroethane)

The answer has brackets only drawn round one of the units; is this the case for all repeat units?


yup i guess and then after the brackets right the number of repeated units
http://gcsescience.gcsescience.mobi/repeat-unit.gif

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