[rtkt01]

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    Br Cl

 I know that drawing are terrible, but I don't know how to draw it better on this board.

 I got 3-ethyl-5-methylnonane , 2,3,12-trimethyltridecane, and 6-bromo-4-chloro-1-iododecane for the systematic names for each.

 Did I name them right?

[Fridushka]

Well yeah you have named them right as it seems to me..great job